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+% \CheckSum{611}
+%
+% \iffalse
+%% Package `bibunits' to use with LaTeX2e.
+%%
+%% Copyright (C) 1999--2004 Thorsten Hansen
+%%
+%
+% This work may be distributed and/or modified under the conditions of
+% the LaTeX Project Public License, either version 1.3 of this license
+% or any later version. The latest version of this license is in
+% http://www.latex-project.org/lppl.txt and version 1.3 or later is
+% part of all distributions of LaTeX version 2003/12/01 or
+% later.
+%
+% This work has the LPPL maintenance status "maintained". The Current
+% Maintainer of this work is Thorsten Hansen.
+%
+% This is a contributed file to the LaTeX2e system.
+%
+%
+%<*dtx>
+ \ProvidesFile{bibunits.dtx}
+%</dtx>
+%<package>\NeedsTeXFormat{LaTeX2e}
+%<package>\ProvidesPackage{bibunits}
+%<driver>\ProvidesFile{bibunits.drv}
+% \fi
+% \ProvidesFile{bibunits.dtx}
+ [2004/05/12 v2.4 Multiple bibliographies in one document.]
+%
+% \iffalse
+%<*driver>
+\documentclass{ltxdoc}
+\usepackage{ifthen}
+%
+% Sort `General´ before macros starting with `@'.
+%
+\makeatletter
+\def\changes@#1#2#3{%
+\protected@edef\@tempa{\noexpand\glossary{#1\levelchar
+ \ifx\saved@macroname\@empty
+ \space
+ \actualchar
+ \generalname
+ \else
+ \space % <-- \space added
+ \expandafter\@gobble
+ \saved@macroname
+ \actualchar
+ \string\verb\quotechar*%
+ \verbatimchar\saved@macroname
+ \verbatimchar
+ \fi
+ :\levelchar #3}}%
+ \@tempa\endgroup\@esphack}
+\makeatother
+%
+%
+%
+\CodelineIndex
+\RecordChanges
+%\OnlyDescription
+\begin{document}
+\DocInput{bibunits.dtx}
+\end{document}
+%</driver>
+% \fi
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \newcommand{\class}[1]{\textsf{#1}}
+% \renewcommand*\descriptionlabel[1]{\hspace\labelsep\option{#1}}
+% \newcommand{\komascript}{KOMA-\textsc{Script}}
+% \newcommand{\macrott}[1]{\texttt{\symbol{'134}#1}}
+% \newcommand{\option}[1]{\textsf{#1}}
+% \newcommand{\package}[1]{\textsf{#1}}
+%
+% ^^A
+% ^^A Rules to separate figures from the text. (Modified from bibtopic.dtx).
+% ^^A
+% \newcommand\toprule[1][]{^^A
+% \ifthenelse{\equal{#1}{}}{^^A
+% \noindent{\makebox[\textwidth][t]{\hrulefill}}^^A
+% }{%
+% \noindent{\makebox[\textwidth][t]{\hrulefill^^A
+% \raisebox{-.5ex}{ \small\ttfamily#1 }\hrulefill}}^^A
+% }%
+% \par\noindent}
+%
+% \newcommand\bottomrule{\noindent\rule[\baselineskip]{\textwidth}{.6pt}}
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \hyphenation{bib-lio-gra-phy bib-lio-gra-phies bib-unit bib-units}
+%
+% \GetFileInfo{bibunits.dtx}
+% \title{The \package{bibunits} Package}
+% \author{Thorsten Hansen\\
+% \normalsize thorsten.hansen@psychol.uni-giessen.de}
+% \date{\fileversion\quad \filedate}
+% \maketitle
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% \GlossaryPrologue{\section*{{Change History}}%
+% \markboth{{Change History}}{{Change History}}%
+% Version 1.0 by Jos\'e Alberto Fern\'andez, Version 1.0a till 2.3
+% by Thorsten Hansen. Version numbers suffixed with characters have
+% not been released. Since v2.1, each new version has a `General'
+% item describing the new feature or the fixed problem,
+% and local items describing the changes of the code.}
+%
+% \changes{v1.0}{1991/09/07}{Initial \LaTeX\ 2.09 version.}
+% \changes{v1.0a}{1998/10/30}{The same cited item can occur in more than one
+% bibliography.}
+% \changes{v1.0b}{1998/11/09}{Auxiliary files are created only for bibunits
+% which contain cite commands.}
+% \changes{v1.0c}{1998/11/15}{Extra spaces are no longer introduced,
+% upgrade to \LaTeXe.}
+% \changes{v2.0}{1999/07/22}{Documentation.}
+% \changes{v2.1a}{1999/11/15}{Add bibliography name to table of
+% contents for compatibility with \komascript\ classes using the option
+% \option{bibtotoc}.}
+% \changes{v2.1b}{1999/11/24}{Fixed problem with cite command after
+% \macrott{paragraph}.}
+% \changes{v2.1c}{1999/11/24}{New option \option{labelstoglobalaux}.}
+% \changes{v2.1d}{2000/01/27}{Global labels are no longer overwritten by
+% local bibunit labels for the same cited item.}
+% \changes{v2.1e}{2000/03/28}{Compatibility with \package{babel} using
+% the option \option{frenchb}.}
+% \changes{v2.1f}{2000/04/02}{Streamlined implementation of starting
+% bibunits by cite commands.}
+% \changes{v2.1g}{2000/07/31}{Compatibility with \package{mparhack}.}
+% \changes{v2.1h}{2000/08/06}{New implementation: global labels are no
+% longer overwritten by local bibunit labels for the same cited item.}
+% \changes{v2.1i}{2000/09/30}{Allow \macrott{putbib} to appear before
+% the first occurrence of a cite within a bibunit.}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion}, delete macro \macrott{@localcitedefault}.}
+% \changes{v2.1k}{2000/10/02}{Ignore spaces in arguments for starred
+% version of \macrott{cite}.}
+% \changes{v2.1l}{2000/10/03}{New option \option{globalcitecopy}.}
+% \changes{v2.1m}{2000/10/05}{Compatibility with \package{natbib} and
+% \package{babel} using the option \option{frenchb}.}
+% \changes{v2.1n}{2000/10/08}{\package{jurabib} compatibility.}
+% \changes{v2.1o}{2000/10/09}{Use of \macrott{@input} and
+% \macrott{@input@} consistent with \LaTeX\ base implementation.}
+% \changes{v2.2}{2000/10/10}{Documentation.}
+% \changes{v2.2a}{2003/07/12}{New macros \macrott{defaultbibliography}
+% and \macrott{defaultbibliographystyle}; default values of
+% \macrott{bu@bibunit} and \macrott{bu@bibstyle} changed
+% from \texttt{\{\}} to \macrott{jobname} resp.\ \texttt{plain}.}
+% \changes{v2.2b}{2003/07/12}{Compatibility with \package{cite} which
+% has integrated package \package{overcite} since v4.0 of
+% \package{cite}.}
+% \changes{v2.2c}{2003/07/27}{Check whether warning ``Label(s) may
+% have changed. Rerun\dots'' should be given.}
+% \changes{v2.2d}{2003/07/27}{New options \option{sectionbib} and
+% \option{subsectionbib}.}
+% \changes{v2.2e}{2003/08/18}{Compatibility patch for \package{babel}
+% together with \package{jurabib}.}
+% \changes{v2.3}{2004/02/06}{Documentation.}
+%
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+%
+% \begin{abstract}
+% The \package{bibunits} package allows separate bibliographies for
+% different units or parts of the text. The units can be chapters,
+% sections or \texttt{bibunit} environments. The package separates
+% the citations of each unit of text into a local auxiliary file to
+% be processed by \BibTeX. The same cited item can occur in more
+% than one bibliography. A global bibliography can also appear in
+% the document and citations can be placed in both at the same time.
+% The package is compatible with a wide variety of packages,
+% including, but not limited to, \textsf{cite}, \textsf{jurabib},
+% \textsf{natbib}, \textsf{overcite} and \komascript\ classes. It is
+% based on the \package{bibunits} style by Jos\'e Alberto Fern\'andez.
+% \end{abstract}
+%
+%
+%
+% \section{Introduction}
+%
+% Suppose, you have different units or parts within your document, and
+% each unit should have its own bibliography. In this case, you can
+% use the \package{bibunits} package to do the work.
+%
+%
+% Let's first consider a simple example to see how \package{bibunits}
+% works (see Fig.~\ref{fig:Example}). We specify two bibunits using the
+% \textsf{bibunit} environment. The optional parameter specifies the
+% bibliography style to be used within the bibunits bibliography, in
+% this case \textsf{plain} for the first and \textsf{alpha} for the
+% second bibunit. Citations can be made as usual. Similar to the
+% |\bibliography| command, you have to specify where the bibliography
+% should appear within a bibunit. This is done using |\putbib|. The
+% optional parameter specifies the \BibTeX\ files to be used for
+% generating the bibunits bibliography, in this case \texttt{lit}.
+%
+% \begin{figure}[h]
+% \hspace*{-25mm}\begin{minipage}[t]{0.6\textwidth}
+% \toprule
+% {\let\small\footnotesize
+% \begin{verbatim}
+% \documentclass{article}
+% \usepackage{bibunits}
+%
+% \begin{document}
+% \begin{bibunit}[plain]
+% References to the \TeX book \cite{Knuth:1991}
+% and to Lamport's \LaTeX\ book, which appears
+% only in the references\nocite{Lamport:1994}.
+% \putbib[lit]
+% \end{bibunit}
+%
+% \begin{bibunit}[alpha]
+% A new bibunit with a different style and a cite
+% of a Postscript tutorial \cite{Adobe:1985}.
+% \putbib[lit]
+% \end{bibunit}
+%
+% \end{document}
+% \end{verbatim}}
+% \bottomrule
+% \end{minipage}
+% \hspace{5mm}
+% \begin{minipage}[t]{0.65\textwidth}
+% \toprule
+% \leftmargini1mm
+% \begin{quote}
+% \footnotesize
+% References to the \TeX book [1]
+% and to Lamport's \LaTeX\ book, which appears
+% only in the references.
+% \let\section\subsubsection
+% \vspace{-3mm}
+% \begin{thebibliography}{1}
+% \bibitem{Knuth:1991}
+% Donald~E. Knuth.
+% \newblock {\em The {\TeX} book}.
+% \newblock Addison-Wesley, Reading, Massachusetts, 1991.
+% \bibitem{Lamport:1994}
+% Leslie Lamport.
+% \newblock {\em {\LaTeX:} A Document Preparation System}.
+% \newblock Addison-Wesley, Reading, Massachusetts, 2 edition, 1994.
+% \end{thebibliography}
+%
+% A new bibunit with a different style and a cite
+% of a Postscript tutorial [Ado85].
+% \vspace{-3mm}
+% \begin{thebibliography}{{Ado}85}
+% \bibitem[{Ado}85]{Adobe:1985}
+% {Adobe {S}ystem {I}ncorporated}.
+% \newblock {\em Postscript Language Tutorial and Cookbook}.
+% \newblock Addison-Wesley, Reading, Massachusetts, 1985.
+% \end{thebibliography}
+%
+% \end{quote}
+% \vspace{2.25mm}
+% \bottomrule
+% \end{minipage}
+% \caption{Example input and output.}
+% \label{fig:Example}
+% \end{figure}
+%
+% For each bibunit,
+% there is now a separate auxiliary file |bu|\meta{i}|.aux| to be
+% processed by \BibTeX. In this example, we have two bibunits with
+% auxiliary files |bu1.aux| and |bu2.aux|. To process your document,
+% three runs of \LaTeX\ and two runs of \BibTeX\ are required.
+%
+% \vbox{%
+% \begin{verbatim}
+% latex mydoc
+% bibtex bu1
+% bibtex bu2
+% latex mydoc
+% latex mydoc
+% \end{verbatim}}
+%
+% This example should give a pretty good impression of what
+% principally can be
+% done with \package{bibunits} and how it can be done. But
+% \package{bibunits} allows for many more features, e.g., bibunits
+% can be specified by |\sections|, a global bibliography can be used,
+% and cite command can be placed in both the local and the global
+% bibliography at the same time, among other features. All these
+% features and associated commands are described in the next section.
+%
+%
+%
+%
+% \section{Usage Notes}
+%
+% There are two ways to specify the units for which a bibliography is
+% generated. You can either define your own \textsf{bibunit}
+% environment, or you can specify bibunits for the \LaTeX\ units
+% |\chapter| or |\section|. Both ways are mutually exclusive, meaning
+% that you can choose only one and cannot mix them.
+%
+% \DescribeEnv{bibunit} Use the environment
+% |\begin{bibunit}|\oarg{style} to create a bibunit. The optional
+% argument \meta{style} specifies a bibliography style. If the optional
+% argument \meta{style} is omitted, the default style is used. How to
+% define a default style is explained below within this section.
+%
+% \DescribeMacro{\bibliographyunit}
+% Alternatively, use |\bibliographyunit|\oarg{unit}, where \meta{unit} can be
+% |\chapter| or |\section| to specify for which document unit
+% a bibliography is generated, namely for every chapter or for every
+% section. Use |\bibliographyunit| with no arguments to deactivate
+% bibliography units. By default |\bibliographyunit| is deactivated.
+% The command |\bibliographyunit| has to be issued
+% after |\begin{document}|.
+%
+% \DescribeMacro{\cite*}
+% \DescribeMacro{\nocite*}
+% You can create a global bibliography as usual with the commands\\
+% |\bibliography|\oarg{BibTeX files} and |\bibliographystyle|\oarg{style}.
+% Use |\cite| and |\nocite| to generate citations that appear in the
+% local bibliography. Use |\cite*| and |\nocite*| inside a unit
+% to generate citations for both the local and global bibliography.
+%
+% \DescribeMacro{\putbib}
+% Use |\putbib|\oarg{BibTeX files} to specify where the
+% bibliography should appear within a bibunit. If the optional
+% argument is omitted, |\putbib| uses the default \BibTeX\ files. How to
+% define a default files is explained below within this section.
+%
+% \DescribeMacro{\defaultbibliography}
+% \DescribeMacro{\defaultbibliographystyle}
+% Use |\defaultbibliography|\marg{BibTeX files} and\\
+% |\defaultbibliographystyle|\marg{style} to specify default \BibTeX\
+% data files and style to be used in the local bibliographies. If no
+% defaults are specified, |\jobname| is used as the default
+% bibliography file and \textsf{plain} is used as the default
+% bibliography style.
+%
+% \medskip\footnotesize
+% \def\MacroFont{\fontencoding\encodingdefault
+% \fontfamily\ttdefault
+% \fontseries\mddefault
+% \fontshape\updefault
+% \footnotesize}%
+%
+% For compatibility to pre-v.2.3
+% versions of \package{bibunits}, two other ways to define
+% default \BibTeX\ styles and files for the local units are possible,
+% but their use is not recommended.
+%
+% If |\bibliographyunit| is active, there are two other ways to define
+% default \BibTeX\ styles and files for the local units:
+% either by defining a global bibliography using |\bibliography| and
+% |\bibliographystyle| or by using
+% starred versions |\bibliography*| and |\bibliographystyle*|, as
+% detailed below.
+%
+% \DescribeMacro{\bibliography} \DescribeMacro{\bibliographystyle}
+% If |\bibliographyunit| is active, the commands
+% |\bibliography|\oarg{BibTeX files} and\\
+% |\bibliographystyle|\oarg{style} also specify the
+% \BibTeX\ files and style to be used by default in the local units.
+% The commands |\bibliography| and |\bibliographystyle| have to be issued
+% after |\begin{document}|.
+%
+% \DescribeMacro{\bibliography*}
+% \DescribeMacro{\bibliographystyle*}
+% If |\bibliographyunit| is active, you can use starred
+% forms |\bibliography*|\marg{BibTeX files} and
+% |\bibliographystyle*|\marg{style} to specify the defaults for
+% the local units only. These commands do not generate a global
+% bibliography or any information for the global bibliography.
+% The commands |\bibliography*| and |\bibliographystyle*| have to be issued
+% after |\begin{document}|.
+%
+% Note that the old pre-v2.3 ways to define default
+% style and \BibTeX\ files can only be specified while
+% |\bibliographyunit| is active. Thus, if you do want default styles
+% but \textsf{bibunit} environments instead of |\bibliographyunit|s,
+% you have to issue a dummy |\bibliographyunit[\section]|, then
+% specify defaults |\bibliography*|\marg{BibTeX files} and
+% |\bibliographystyle*|\marg{style} and finally switch off the
+% generation of bibunits by sections using |\bibliographyunit|.
+%
+% \normalsize
+%
+%
+%
+% \subsection{Package options}
+% \begin{description}
+% \item[globalcitecopy] Create an entry in the global bibliography for
+% each cite command within a bibunit. Default is to create an entry
+% only for the local bibliography.
+% \item[labelstoglobalaux] Write the replacement text for a label
+% inside a bibunit to the global auxiliary file.
+% Default is to write the labels to the local auxiliary file. The
+% option \option{labelstoglobalaux} is useful in some situations, e.g.,
+% \begin{itemize}
+% \item to resolve the references when a bibunit bibliography is
+% |\include|d.
+% \item to resolve citations within a moving argument like
+% |\section|, which otherwise would result in an `Undefined
+% reference' error.
+% \end{itemize}
+% Note that this option results in wrong labels for numerical
+% reference schemes if the same cited item appears at different
+% positions in more than one bibliography
+% (cf.~Sec.~\ref{sec:Limitations}).
+% \item[sectionbib] Let bibliography titles appear at the section
+% level. Useful for chapters as bibliography units.
+% \item[subsectionbib] Let bibliography titles appear at the subsection
+% level. Useful for sections as bibliography units.
+% \end{description}
+%
+%
+%
+% \subsection{\textnormal{\BibTeX} processing}
+%
+% For each bibunit, in sequence, there is now a corresponding file
+% |bu|\meta{i}|.aux| that needs to be compiled through \BibTeX. Suppose
+% your document has \meta{n} different bibunits, you must now invoke
+% \BibTeX\ on |bu1|, \dots , |bu|\meta{n}. This can be done by a
+% csh-script.
+% \begin{verbatim}
+% #!/bin/csh
+% foreach auxfile (bu*.aux)
+% echo bibtex `basename $auxfile .aux`
+% bibtex `basename $auxfile .aux`
+% end
+% \end{verbatim}
+%
+% I you don't have the |basename| command, you can use an alternative
+% script where the suffix |.aux| is removed using |sed|.
+% \begin{verbatim}
+% #!/bin/csh
+% foreach auxfile (bu*.aux)
+% set auxfilebasename = `echo $auxfile | sed s/.aux//`
+% echo bibtex $auxfilebasename
+% bibtex $auxfilebasename
+% end
+% \end{verbatim}
+%
+% If by some strange coincidence you have named some of your files
+% |bu|\meta{i}|.aux|, you have to redefine the internal command
+% |\@bibunitname|, otherwise your files will be overwritten. To get
+% for your document |foo.tex| filenames |foo.|\meta{i}|.aux| as for
+% the first version of \package{bibunits}, you can redefine the
+% internal macro |\@bibunitname|.
+% \begin{verbatim}
+% \makeatletter
+% \renewcommand{\@bibunitname}{\jobname.\the\@bibunitauxcnt}
+% \makeatother
+% \end{verbatim}
+%
+% If you also want a global bibliography for your document |foo.tex|,
+% the file |foo.aux| needs to be compiled through \BibTeX\ as well.
+%
+%
+%
+%
+% \subsection{Limitations}
+% \label{sec:Limitations}
+%
+% \begin{itemize}
+% \item A citation within a moving argument in a bibunit cannot be
+% resolved outside this bibunit, because the label is local to the
+% bibunit. This occurs, e.g., for a |\cite| within |\section|, which is
+% undefined in the table of contents. You can use the option
+% \option{labelstoglobalaux} to resolve the citations, but this
+% has two side effects.
+% \begin{itemize}
+% \item Since the cite command also appears globally in the table of
+% contents, it generates a |\citation| command for the
+% \emph{global} auxiliary file. As a result, another \BibTeX\ run
+% causes this previously local reference to creep into the global
+% bibliography.
+% \item Since the replacement text for all cited items is now
+% global, the same cited item has always the same replacement
+% text, regardless whether it appears at different positions within
+% different bibunits. This results in wrong labels for numerical
+% reference schemes if the same cited item appears at different
+% positions within the bibliographies.
+% \end{itemize}
+% \item When using \package{natbib}, |\cite*| has the
+% meaning as defined by \package{natbib}, namely to force full
+% citation of multiple authors. To get the behavior as defined
+% by \package{bibunits} (without \package{natbib}), use an
+% accompanying |\nocite| outside of a bibunit. Alternatively, if
+% you want \emph{every} local item to appear also in the global
+% bibliography, you can use \package{bibunits} with option
+% \option{globalcitecopy}.
+% \item With \package{natbib}, you cannot use numerical and
+% author-year reference schemes together. Typographically, this
+% is regarded bad style anyway.
+% \end{itemize}
+%
+%
+%
+%
+% \section{Examples}
+% \label{sec:Examples}
+%
+%
+%
+% \subsection{Bibunits by the \texttt{bibunit} environment}
+%
+% In the first example, two bibliographies are generated, the first
+% using the \BibTeX\ file |texlit.bib| and the style |plain|, the
+% second using the \BibTeX\ file |lit.bib| and the style |abbrv|.
+% %
+% \begin{verbatim}
+% \documentclass{article}
+% \usepackage{bibunits}
+%
+% \begin{document}
+% \begin{bibunit}[plain]
+% some text \cite{Lamport:1994} more text more citations
+% \putbib[texlit]
+% \end{bibunit}
+% some text between the units
+% \begin{bibunit}[abbrv]
+% some text \cite{Knuth:1991} more text more citations
+% \putbib[lit]
+% \end{bibunit}
+% \end{document}
+% \end{verbatim}
+%
+% If all bibunits use the same \BibTeX\ files and style, you can
+% specify defaults and omit the optional arguments of the |bibunit|
+% environment and the |\putbib| macro. In the second example, a
+% default \BibTeX\ file |texlit.bib| and a default style |abbrv| is
+% defined using |\defaultbibliography| and |\defaultbibliographystyle|.
+% %
+% \begin{verbatim}
+% \documentclass{article}
+% \usepackage{bibunits}
+%
+% \begin{document}
+% \defaultbibliography{texlit}
+% \defaultbibliographystyle{plain}
+%
+% \begin{bibunit}
+% some text \cite{Lamport:1994} more text more citations
+% \putbib
+% \end{bibunit}
+% some text between the units
+% \begin{bibunit}
+% some text \cite{Knuth:1991} more text more citations
+% \putbib
+% \end{bibunit}
+% \end{document}
+% \end{verbatim}
+%
+% If you use, e.g., the class |article|, the heading of the bibliography has
+% the same font size as a section, which might be too large, especially if
+% you have bibunits \emph{within} sections or even subsections. In
+% this case you may want to change the bibliography heading to have
+% the same appearance as a subsection. This can be done by passing the
+% option \option{subsectionbib} to \package{bibunits}.
+% %
+% \begin{verbatim}
+% \documentclass{article}
+% \usepackage[subsectionbib]{bibunits}
+% \end{verbatim}
+%
+% Similarily, if you use a class such as |book| where the
+% bibliography headings appear at the chapter level by default,
+% headings of the local bibliographies can be changed to appear at the
+% section level by passing the
+% option \option{sectionbib} to \package{bibunits}.
+% %
+% \begin{verbatim}
+% \documentclass{book}
+% \usepackage[sectionbib]{bibunits}
+% \end{verbatim}
+%
+%
+%
+%
+% \subsection{Bibunits by chapters or sections}
+%
+% You can also define bibliographies for every chapter or section. In
+% this case, the redefinition of |\thebibliography| by passing options
+% \option{sectionbib} resp.\ \option{subsectionbib} is essential for
+% the proper behavior of the \package{bibunits} package. The reason is
+% quite simple: if you create bibliographies for every section,
+% and |\thebibliography| also appears at the section level, a new
+% unit is opened by |\thebibliography|, and the information of the
+% previous unit is no longer available. (More technically: The
+% auxiliary file of the previous unit is closed, and the
+% replacement text for the citation which is generated inside
+% |\thebibliography| cannot be written to this file. Instead, it is
+% written to the global |.aux| file.)
+%
+% The next example corresponds to the first example of the previous
+% section with different \BibTeX\ files and styles. Note that you have
+% to specify the |\defaultbibliographystyle| \emph{before} the corresponding
+% section.
+% %
+% \begin{verbatim}
+% \documentclass{article}
+% \usepackage[subsectionbib]{bibunits}
+%
+% \begin{document}
+% \bibliographyunit[\section]
+% \defaultbibliographystyle{plain}
+%
+% \section{First section}
+% some text \cite{Lamport:1994} more text more citations
+% \putbib[texlit]
+% some text between the units
+% \defaultbibliographystyle{abbrv}
+% \section{Second and last section}
+% some text \cite{Knuth:1991} more text more citations
+% \putbib[lit]
+% \end{document}
+% \end{verbatim}
+% %
+% \vspace{-1ex}
+% \noindent You can also use the same \BibTeX\ file and style for all units.
+% %
+% \begin{verbatim}
+% \documentclass{article}
+% \usepackage[subsectionbib]{bibunits}
+%
+% \begin{document}
+% \bibliographyunit[\section]
+% \defaultbibliography{texlit}
+% \defaultbibliographystyle{plain}
+%
+% \section{First section}
+% some text \cite{Lamport:1994} more text more citations
+% \putbib
+% some text between the units
+% \section{Second and last section}
+% some text \cite{Knuth:1991} more text more citations
+% \putbib
+% \end{document}
+% \end{verbatim}
+%
+%
+%
+%
+% \subsection{Bibunits and a global bibliography}
+%
+% In all four examples, one can specify a global
+% bibliography and its style with the usual \LaTeX\ commands.
+% Citations for the global bibliography are entered using |\cite| and
+% |\nocite| commands while outside a unit or using |\cite*| and
+% |\nocite*| while inside a unit. The starred forms generate citations
+% also for the local unit. Thus it is not possible to generate
+% citations \emph{only} for the global bibliography while inside a
+% unit (which seems to be a reasonable restriction). Note that if
+% |\bibliographyunit| is active, \emph{and} you use a global
+% bibliography, \emph{and} you use the same \BibTeX\ file and style
+% for all (local as well as global) bibliographies, \emph{then} the
+% |\defaultbibliography| and |\defaultbibliographystyle| commands are not
+% necessary. In this case proper defaults for the local bibliographies
+% are specified by the commands
+% |\bibliography| and |\bibliographystyle|, too. Note that a second
+% run of \LaTeX\ is necessary before \BibTeX\ processing, in case that
+% the global bibliography has its usual place at the end of the
+% document.
+%
+% The font size used to typeset the global bibliography is the same as
+% for the local bibliographies. To change this, switch off the
+% bibliography units by chapters or sections using |\bibliographyunit|
+% and change |\thebibliography| to its original meaning just before
+% the global bibliography.
+% %
+% \begin{verbatim}
+% \bibliographyunit
+% \let\thebibliography\stdthebibliography
+% \bibliographystyle{plain} % global bibliography
+% \bibliography{texlit} % global bibliography
+% \end{verbatim}
+%
+%
+%
+% \section{Acknowledgments}
+%
+% The author thanks Jos\'e Alberto Fern\'andez for the coding of
+% \package{bibunits} v1.0. Further, contributions of code fragments
+% from various people are gratefully acknowledged (in alphabetical
+% order): Battista Benciolini for the patch to allow |putbib| to
+% appear before the first occurrence of a cite within a bibunit; Jens
+% Berger for the \package{jurabib} fragment of the \package{babel}
+% compatibility code; Jason Harrison for an
+% alternative script to call \BibTeX\ for each local auxiliary file;
+% Werner J\"urgens for the hint on how to suppress unwanted spaces;
+% Frank Mittelbach for a code fragment how to make \package{bibunits}
+% ``Label(s) may have changed.'' warning appear at the end of a \LaTeX\ run;
+% Andrew E.\ Schulman for an early version of the \package{natbib}
+% compatibility patch; Stefan Ullrich for an early version of the
+% \package{jurabib} compatibility patch (communicated by Jens Berger)
+% and the \package{mparhack} compatibility patch. Finally, the author
+% acknowledges the contributions of numerous people, in particular
+% Frank Mittelbach, whose suggestions and bug reports have helped to
+% improve \package{bibunits}.
+%
+%
+% \StopEventually{}
+%
+%
+%
+%
+% \section{The Macros}
+%
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+%
+%
+% \subsection{Allocation}
+%
+% \begin{macro}{\@bu@tempcnta}
+% \changes{v2.1m}{2000/10/05}{Counter removed.}
+%
+% [Allocation of counter removed.]
+% \end{macro}
+%
+%
+%
+% \subsection{Option handling}
+%
+%
+% \begin{macro}{\iflabelstoglobalaux}
+% \changes{v2.1c}{1999/11/24}{Add code for option processing and option
+% \option{labelstoglobalaux}.}
+%
+% Define a new if to switch between global definition of labels
+% within a bibliography and local labels (default). Global labels
+% can be activated with option \option{labelstoglobalaux}.
+% \begin{macrocode}
+\newif\iflabelstoglobalaux \labelstoglobalauxfalse
+\DeclareOption{labelstoglobalaux}{\labelstoglobalauxtrue}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\ifglobalcitecopy}
+% \changes{v2.1l}{2000/10/03}{Add code for option \option{globalcitecopy}.}
+%
+% Define a new if to switch between entering of cite commands
+% within a bibunit also to the global bibliography or only to the local
+% bibliography (default). Entering of cite commands also to the
+% global bibliography can be activated with
+% option \option{globalcitecopy}.
+%
+% \begin{macrocode}
+\newif\ifglobalcitecopy
+\globalcitecopyfalse
+\DeclareOption{globalcitecopy}{\globalcitecopytrue}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{sectionbib}
+% \changes{v2.2d}{2003/07/27}{Add code for option \option{sectionbib}.}
+%
+% Let bibliography titles appear at the section level. Useful for
+% chapters as bibliography units.
+%
+% \begin{macrocode}
+\DeclareOption{sectionbib}{%
+ \AtBeginDocument{%
+ \let\stdthebibliography\thebibliography
+ \def\thebibliography{%
+ \let\chapter\section
+ \stdthebibliography}}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{subsectionbib}
+% \changes{v2.2d}{2003/07/27}{Add code for option \option{subsectionbib}.}
+%
+% Let bibliography titles appear at the subsection level. Useful for
+% sections as bibliography units.
+%
+% \begin{macrocode}
+\DeclareOption{subsectionbib}{%
+ \AtBeginDocument{%
+ \let\stdthebibliography\thebibliography
+ \def\thebibliography{%
+ \let\chapter\subsection
+ \let\section\subsection
+ \stdthebibliography}}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \noindent Finally, process all package options.
+%
+% \begin{macrocode}
+\ProcessOptions
+% \end{macrocode}
+%
+%
+%
+% \subsection{An auxiliary file for each bibunit is provided}
+%
+%
+% \begin{macro}{\@bibunitaux}
+% Define the file descriptor |\@bibunitaux| of the auxiliary file that is
+% generated for each bibunit.
+% \begin{macrocode}
+\newwrite\@bibunitaux
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@bibunitauxcnt}
+% Define the counter for the bibunits and initialize it with zero.
+% \begin{macrocode}
+\newcount\@bibunitauxcnt \@bibunitauxcnt=0
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@bibunitname}
+% \changes{v1.0d}{1998/11/15}{New name
+% \mbox{\texttt{bu}\string\meta{i}\texttt{.aux}} for the
+% auxiliary files that are created for each bibunit.}
+%
+% The command |\@bibunitname| sets the basename of the auxiliary files
+% that are created for each bibunit to |bu| (|bu| for
+% |b|ib|u|nits), followed by the current number of the bibunit,
+% |\the\@bibunitauxcnt|. (In version 1.0 of \package{bibunits} there
+% was no such command, and the command sequence
+% |\jobname.\the\@bibunitauxcnt| was directly used.)
+% \begin{macrocode}
+\def\@bibunitname{bu\the\@bibunitauxcnt}
+% \end{macrocode}
+% \end{macro}
+%
+%
+%
+% \subsection{New cite commands}
+%
+% The main idea is to save the old meaning of the command and then
+% to redefine it. At the beginning of a bibunit, the new commands are
+% activated, at the end of a bibunit, the old commands are restored.
+%
+% \begin{macro}{\if@localcite}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion}.}
+%
+% Define a new if to store if a macro is evoked with or without a
+% star. This is used by cite commands to switch between local and
+% global cites, i.e., cites of references that occur in the local
+% or also in the global bibliography. The is also a starred version
+% of |\bibliopography| and |\bibliopographystyle| to enter
+% default \BibTeX\ data files and styles for the bibunits only.
+%
+% \begin{macrocode}
+\newif\if@starredversion
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@localcitedefault}
+% \changes{v2.1j}{2000/10/02}{Macro removed.}
+%
+% [Macro deleted.]
+% \end{macro}
+%
+%
+% \begin{macro}{\std@cite}
+% \begin{macro}{\bu@cite}
+% \changes{v2.0c}{1999/09/27}{Macro declared robust.}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion} and switch false and true.}
+%
+% \begin{macrocode}
+\let\std@cite\cite
+\DeclareRobustCommand\bu@cite{%
+ \@ifstar
+ {\@starredversiontrue\std@cite}%
+ {\@starredversionfalse\std@cite}%
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\std@@citex}
+% \begin{macro}{\bu@@citex}
+% \changes{v2.0a}{1999/06/02}{\package{natbib} v6.5 compatibility.}
+% \changes{v2.0b}{1999/07/06}{Implementation streamlined.}
+% \changes{v2.0f}{1999/10/05}{\package{overcite} compatibility.}
+% \changes{v2.0g}{1999/10/22}{\package{natbib} v7.0 compatibility.}
+% \changes{v2.1b}{1999/11/24}{\macrott{leavevmode} added.}
+% \changes{v2.1f}{2000/04/02}{\macrott{@startbibunitorrelax} added,
+% definition of standard version for all \package{natbib} cite
+% commands removed.}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion} and switch if branches,
+% delete \macrott{@localcitedefault}.}
+% \changes{v2.1k}{2000/10/02}{For standard definition (without
+% \package{bibunits} or \package{overcite}), replace direct
+% writing to \macrott{@bibunitaux} by use of \macrott{std@nocite}.}
+% \changes{v2.1l}{2000/10/03}{Handling of option
+% \option{globalcitecopy} added.}
+% \changes{v2.1n}{2000/10/08}{\package{jurabib} compatibility.}
+% \changes{v2.2b}{2003/07/12}{\package{cite} compatibility.}
+%
+% Define the \package{bibunits} macro |\bu@@citex| replacing the
+% internal macro |\@citex|. Macro |\@citex| is evoked by the |\cite|
+% and its various derivatives defined by other packages. Basically,
+% |\bu@@citex| the following actions take place. The macro
+% |\startbibunitorrelax| ensures that auxiliary files are created
+% only for non-empty bibunits. The macro |\leavevmode| are added to
+% fix a problem that occurs in some special situations when a
+% |\paragraph| within a bibunit is immediately followed by a cite
+% command, as explained below. Next, the standard version of
+% |\@citex|, namely |\std@@citex| is evoked with |\@auxout| locally
+% changed, so that citations are written to the local auxiliary
+% file of each bibunit. Finally, if option \option{globalcitecopy}
+% is active or the starred form of the cite command is evoked,
+% i.e., |\if@starredversion| is true, citations are
+% \emph{also} written to the global auxiliary file, so that
+% citations appear in both the local as well as the global
+% bibliography at the same time.
+%
+% After this general description, the use of |\leavevmode| is
+% further detailed. The |\leavevmode| commands are added to fix a
+% problem that occurs when a |\paragraph| within a bibunit is
+% immediately followed by a cite command, and within |\paragraph|
+% something is written to |\@auxout|, e.g., an entry for the table
+% of contents or the index. In this cases, the entry go to the
+% local auxiliary file of the corresponding bibunit instead of the
+% standard auxiliary file |\@auxout|. The reason is that the
+% argument of |\paragraph| is stored in an |\everypar|, which is
+% evaluated later. In case of a cite command that immediately
+% follows |\paragraph|, the evaluation occurs within the scope of
+% the cite, where the |\@auxout| is let to the local auxiliary file
+% of the corresponding bibunit. Consequently, the entry is written
+% to the wrong, i.e., local, auxiliary file. We add an
+% |\leavevmode| to evaluate |\everypar| before |\@auxout| is
+% redefined. Alternatively, the typesetting of |\paragraph| in
+% |\@xsect| of the \LaTeX\ kernel might be revised.
+%
+% Additional to the new standard definition of |\@citex|, different
+% versions have to be defined depending other packages loaded,
+% namely \package{natbib}, \package{overcite} and
+% \package{jurabib}. These packages are mutually exclusive, with
+% the priority as defined by their order in the previous sentence.
+% That means, e.g., if you have chosen \package{natbib} together
+% with \package{bibunits}, you cannot use \package{overcite} or
+% \package{jurabib}.
+%
+% All definitions are done |\AtBeginDocument| so that packages
+% loaded after \package{bibunits} can be discovered.
+%
+% \begin{macrocode}
+\AtBeginDocument{%
+% \end{macrocode}
+%
+% Several modifications and additions are necessary if package
+% \package{natbib} is loaded: First macro |\NAT@set@cites| is used
+% to invoke \package{natbib}'s cite commands. This is only
+% necessary if these commands have not been set, i.e. in case
+% \package{bibunits} is evoked before \package{natbib}, but does
+% not do any harm otherwise. Second macro |\bu@@citex| is changed
+% as described below, and the various versions of
+% \package{natbib}'s cite commands are save in a |\std|\dots version.
+%
+% The definition of |\bu@@citex| is changed in the following ways:
+% i) the |\let| of |\@auxout| is encapsulated using |\begingroup|
+% and |\endgroup| instead of braces, since braces results in an
+% error; ii) macro |\std@@citex| has two optional
+% arguments instead of one; iii) the code of |\if@starredversion| is
+% skipped in favor of the meaning of a starred cite in
+% \package{natbib}, namely to force full listing of multiple
+% authors.
+%
+% \begin{macrocode}
+ \@ifpackageloaded{natbib}%
+ {%
+ \NAT@set@cites \let\std@@citex\@citex
+ \def\bu@@citex[#1][#2]#3{%
+ \@startbibunitorrelax
+ \leavevmode
+ \begingroup\let\@auxout\@bibunitaux\std@@citex[#1][#2]{#3}\endgroup
+ \ifglobalcitecopy
+ \std@nocite{#3}%
+ \fi
+ }%
+ }%
+% \end{macrocode}
+%
+% If \package{natbib} is not loaded, we check for
+% \package{cite}. In this case, an additional command
+% |\@citew| has to be redefined which handles |\cite| without an
+% argument. Further, an internal command of \package{cite},
+% namely |\@nocite| is used to write to the standard auxiliary file.
+%
+% \begin{macrocode}
+ {%
+ \@ifpackageloaded{cite}%
+ {%
+ \let\std@@citew\@citew
+ \def\bu@@citew#1{%
+ \@startbibunitorrelax
+ \leavevmode
+ {\let\@auxout\@bibunitaux \std@@citew{#1}}%
+ \ifglobalcitecopy
+ \@nocite{#1}%
+ \else
+ \if@starredversion
+ \@nocite{#1}%
+ \fi
+ \fi
+ }
+ \let\std@@citex\@citex
+ \def\bu@@citex[#1]#2{%
+ \@startbibunitorrelax
+ \leavevmode
+ {\let\@auxout\@bibunitaux \std@@citex[#1]{#2}}%
+ \ifglobalcitecopy
+ \@nocite{#2}%
+ \else
+ \if@starredversion
+ \@nocite{#2}%
+ \fi
+ \fi
+ }
+ }%
+% \end{macrocode}
+%
+% Next we check if \package{overcite} is loaded. This is done for
+% compatibility reasons only, since \package{overcite} is
+% integrated into \package{cite} since version 4.0.---We give a
+% warning that an obsolete package has been loaded and do the
+% same definitions as for \package{cite}.
+%
+% \begin{macrocode}
+ {%
+ \@ifpackageloaded{overcite}%
+ {%
+ \PackageWarningNoLine{bibunits}%
+ {Obsolete package overcite loaded. Use package cite which
+ option [superscript] instead}%
+ \let\std@@citew\@citew
+ \def\bu@@citew#1{%
+ \@startbibunitorrelax
+ \leavevmode
+ {\let\@auxout\@bibunitaux \std@@citew{#1}}%
+ \ifglobalcitecopy
+ \@nocite{#1}%
+ \else
+ \if@starredversion
+ \@nocite{#1}%
+ \fi
+ \fi
+ }
+ \let\std@@citex\@citex
+ \def\bu@@citex[#1]#2{%
+ \@startbibunitorrelax
+ \leavevmode
+ {\let\@auxout\@bibunitaux \std@@citex[#1]{#2}}%
+ \ifglobalcitecopy
+ \@nocite{#2}%
+ \else
+ \if@starredversion
+ \@nocite{#2}%
+ \fi
+ \fi
+ }
+ }%
+% \end{macrocode}
+%
+% If neither \package{natbib} nor \package{cite} nor
+% \package{overcite} are loaded, we
+% check for \package{jurabib}. In this case, the definition of
+% |\std@@citex| differs from the default version by a second
+% optional argument, similar to \package{natbib}.
+%
+% \begin{macrocode}
+ {%
+ \@ifpackageloaded{jurabib}%
+ {%
+ \let\std@@citex\@citex
+ \def\bu@@citex[#1][#2]#3{%
+ \@startbibunitorrelax
+ \leavevmode
+ {\let\@auxout\@bibunitaux \std@@citex[#1][#2]{#3}}%
+ \ifglobalcitecopy
+ \std@nocite{#3}%
+ \else
+ \if@starredversion
+ \std@nocite{#3}%
+ \fi
+ \fi
+ }%
+ }%
+% \end{macrocode}
+%
+% Finally, the default definition.
+%
+% \begin{macrocode}
+ {%
+ \let\std@@citex\@citex
+ \def\bu@@citex[#1]#2{%
+ \@startbibunitorrelax
+ \leavevmode
+ {\let\@auxout\@bibunitaux \std@@citex[#1]{#2}}%
+ \ifglobalcitecopy
+ \std@nocite{#2}%
+ \else
+ \if@starredversion
+ \std@nocite{#2}%
+ \fi
+ \fi
+ }%
+ }%
+ }%
+ }%
+ }%
+}%
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\std@nocite}
+% \begin{macro}{\bu@nocite}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion} and switch false and true.}
+%
+% \begin{macrocode}
+\let\std@nocite\nocite
+\def\bu@nocite{%
+ \@ifstar
+ {\@starredversiontrue\@bu@nocite}%
+ {\@starredversionfalse\@bu@nocite}%
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\@bu@nocite}
+% \changes{v2.1f}{2000/04/02}{\macrott{@startbibunitorrelax} added.}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion} and switch if branches,
+% delete \macrott{@localcitedefault}.}
+% \changes{v2.1k}{2000/10/02}{Replace direct writing to
+% \macrott{@bibunitaux} by \macrott{std@nocite} within scope
+% of redefined \macrott{@auxout}, \macrott{@bsphack} and
+% \macrott{@esphack} removed.}
+% \changes{v2.1l}{2000/10/03}{Handling of option
+% \option{globalcitecopy} added.}
+%
+% \begin{macrocode}
+\def\@bu@nocite#1{%
+ \@startbibunitorrelax
+ {\let\@auxout\@bibunitaux \std@nocite{#1}}%
+ \ifglobalcitecopy
+ \std@nocite{#1}%
+ \else
+ \if@starredversion
+ \std@nocite{#1}%
+ \fi
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+%
+% \subsection{New bibliography and bibliographystyle commands}
+%
+% \changes{v1.0e}{1998/11/30}{Global definition of bibunit data and style.}
+%
+% In this paragraph no general description is given, rather an
+% explanation why in the following two macros |\@bu@bibliography| and
+% |\@bu@bibliographystyle| the command |\gdef\bu@bibdata| and
+% |\gdef\bu@bibstyle| are written to the auxiliary file and are directly
+% executed, too. The execution through the auxiliary file has been left
+% for compatibility to older versions of \package{bibunits}: if you
+% also have a global bibliography, you can specify \BibTeX\ styles and
+% files for the global bibliography (using |\bibliography| and
+% |\bibliographystyle|, usually at the end of the document). In this
+% case, writing the execution of |\gdef| to the auxiliary file ensures
+% that in subsequent runs of \LaTeX defaults for the local
+% bibliographies are generated as well. Without this, the user would
+% have to explicitly specify \BibTeX\ files and styles for the local
+% bibliographies using the starred forms |\bibliography*| and
+% |\bibliographystyle*|. On the other hand, with the direct execution
+% of the |\gdef| commands, the starred forms specify defaults which can be
+% used already in the first run of \LaTeX\, if put before the first bibunit.
+%
+%
+%
+% \begin{macro}{\bu@bibdata}
+% \changes{v2.2a}{2003/07/12}{Default changed from \texttt{\{\}} to
+% \macrott{jobname}.}
+%
+% Define data files store.
+% \begin{macrocode}
+\def\bu@bibdata{\jobname}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\orig@bibliography}
+% \begin{macro}{\bibliography}
+% \begin{macro}{\std@bibliography}
+% \changes{v2.1h}{2000/08/06}{New definition of
+% \macrott{bibliography} to open \texttt{bu.aux}, write to
+% \macrott{@mainaux} and close \texttt{bu.aux}.}
+%
+% If |\labelstoglobalaux| is false, define a new version of
+% |\bibliography| where the replacement text for the labels is
+% written to a new file |bu.aux|. This file is input at the
+% end of each bibunit to restore the global labels which are
+% overwritten if a global item is also cited within a bibunit.
+% Input of the main auxiliary file is not appropriate, because this
+% file contains additional material which should not be input more
+% than once, e.g., commands which generate entries for the table of
+% contents.
+%
+% The definition of |\std@bibliography| is used to define a
+% version of |\bibliography| with enhanced functionality
+% |\bu@bibliography|.
+%
+% \begin{macrocode}
+\AtBeginDocument{%
+ \iflabelstoglobalaux
+ \else
+ \let\orig@bibliography\bibliography
+ \def\bibliography#1{%
+ \if@filesw
+ \immediate\openout\@bibunitaux bu.aux
+ \immediate\write\@mainaux{\string\@input{bu.aux}}%
+ \fi
+ \orig@bibliography{#1}%
+ \if@filesw
+ \immediate\closeout\@bibunitaux
+ \fi
+ }%
+ \fi
+ \let\std@bibliography\bibliography
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\bu@bibliography}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion}.}
+%
+% \begin{macrocode}
+\def\bu@bibliography{%
+ \@ifstar
+ {\@starredversiontrue\@bu@bibliography}%
+ {\@starredversionfalse\@bu@bibliography}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@bu@bibliography}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion}, delete \macrott{@localcitedefault}.}
+% \changes{v2.2a}{2003/07/12}{Evokes new macro
+% \macrott{defaultbibliography}.}
+%
+% \begin{macrocode}
+\def\@bu@bibliography#1{%
+ \defaultbibliography{#1}%
+ \if@starredversion
+ \else
+ \std@bibliography{#1}%
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\defaultbibliography}
+% \changes{v2.2a}{2003/07/12}{New macro.}
+%
+% \macrott{defaultbibliography} allows to define default
+% bibliography files whether bibunits is active or not. Does the same as
+% \macrott{bibliography*} when bibunits is active.
+%
+% \begin{macrocode}
+\def\defaultbibliography#1{%
+ \if@filesw
+ \immediate\write\@auxout{\string\gdef\string\bu@bibdata{#1}}%
+ \fi
+ \gdef\bu@bibdata{#1}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\bu@bibstyle}
+% \changes{v2.2a}{2003/07/12}{Default changed from \texttt{\{\}} to
+% \texttt{plain}.}
+%
+% Define style store.
+% \begin{macrocode}
+\def\bu@bibstyle{plain}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\std@bibliographystyle}
+% \begin{macro}{\bu@bibliographystyle}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion}.}
+%
+% \begin{macrocode}
+\let\std@bibliographystyle\bibliographystyle
+\def\bu@bibliographystyle{%
+ \@ifstar
+ {\@starredversiontrue\@bu@bibliographystyle}%
+ {\@starredversionfalse\@bu@bibliographystyle}%
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\@bu@bibliographystyle}
+% \changes{v2.1j}{2000/10/02}{Rename \macrott{@localcite} to
+% \macrott{@starredversion}, delete \macrott{@localcitedefault}.}
+% \changes{v2.2a}{2003/07/12}{Evokes new macro
+% \macrott{defaultbibliographystyle}.}
+%
+% \begin{macrocode}
+\def\@bu@bibliographystyle#1{%
+ \defaultbibliographystyle{#1}%
+ \if@starredversion
+ \else
+ \std@bibliographystyle{#1}%
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\defaultbibliographystyle}
+% \changes{v2.2a}{2003/07/12}{New macro.}
+%
+% \macrott{defaultbibliographystyle} allows to define a default
+% bibliography style whether bibunits is active or not. Does the same as
+% \macrott{bibliographystyle*} when bibunits is active.
+%
+% \begin{macrocode}
+\def\defaultbibliographystyle#1{%
+ \if@filesw
+ \immediate\write\@auxout{\string\gdef\string\bu@bibstyle{#1}}%
+ \fi
+ \gdef\bu@bibstyle{#1}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+%
+% \subsection{Bibunits}
+%
+%
+% \subsubsection{Bibunits by an extra environment}
+%
+% The starting of a bibunit is a two-step process: in the first step
+% (macro |\bibunit|), all cite commands are redefined to trigger the
+% second step, namely the actual starting of a bibunit (macro
+% |\@startbibunit|). This may seem weird on the first sight, but has
+% the advantage that no auxiliary files are created if a bibunit
+% contains no |\cite|, |\cite*|, |\nocite| or |\nocite*| commands. To
+% handle citations of the same reference in different bibliographies,
+% the local auxiliary file is input at the beginning of each bibunit
+% (in macro |\@startbibunit|), and the replacement text is also
+% written to the \emph{local} auxiliary file (in macro |\@putbib|).
+%
+%
+% \begin{macro}{\bibunit}
+% \changes{v2.0g}{1999/10/22}{\package{natbib} v7.0 compatibility.}
+% \changes{v2.1f}{2000/04/02}{Evoking of \package{bibunits} version
+% of cite commands, let \macrott{@startbibunitorrelax} to
+% \macrott{@startbibunit} added.}
+%
+% At the beginning of a bibunit, all cite command are set to
+% their initializing versions, and |\@finishbibunit| can relax,
+% because currently no citation has appeared. Hence no local
+% auxiliary file has been opened for the current bibunit, which has to
+% be closed at the end of the bibunit.
+% \begin{macrocode}
+\def\bibunit{%
+ \global\let\cite\bu@cite
+ \global\let\@citex\bu@@citex
+ \global\let\@citew\bu@@citew
+ \global\let\nocite\bu@nocite
+ \global\let\@startbibunitorrelax\@startbibunit
+ \global\let\@finishbibunit\relax
+ \@ifnextchar[{\@bibunitx}{\@bibunitx[\bu@bibstyle]}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@bibunitx}
+% If the current bibunit has an extra bibstyle, it is saved in
+% |\@localbibstyle|. (In version 1.0a |\bibstyle| command has been
+% directly written to the local auxiliary file. This is now done in
+% |\@startbibunit|.)
+% \begin{macrocode}
+\def\@bibunitx[#1]{\gdef\@localbibstyle{#1}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\endbibunit}
+% \changes{v2.0f}{1999/10/05}{\package{overcite} compatibility.}
+% \changes{v2.0g}{1999/10/22}{\package{natbib} v7.0 compatibility.}
+% \changes{v2.1f}{2000/04/02}{Restoration of standard versions of
+% \package{natbib} cite commands removed.}
+% \changes{v2.1h}{2000/08/06}{Input \texttt{bu.aux}.}
+% \changes{v2.1o}{2000/10/09}{Use \macrott{@input} instead of
+% \macrott{@input@} for reading \texttt{bu.aux}.}
+%
+% At the end of the bibunit, all cite commands are restored to
+% their former meaning (|\@citew| is used by package
+% \package{overcite}). Also the local auxiliary file is closed if
+% it has been opened. Finally, the replacement text for the global
+% citation labels (if exists) are restored using |\@input|.
+% \begin{macrocode}
+\def\endbibunit{%
+ \global\let\cite\std@cite
+ \global\let\@citex\std@@citex
+ \global\let\@citew\std@@citew
+ \global\let\nocite\std@nocite
+ \@finishbibunit
+ \@input{bu.aux}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@startbibunit}
+% \changes{v2.0f}{1999/10/05}{\package{overcite} compatibility.}
+% \changes{v2.0g}{1999/10/22}{\package{natbib} v7.0 compatibility.}
+% \changes{v2.1d}{2000/01/27}{Remove enclosing braces around input
+% of local auxiliary file and restore catcodes and endlinechar.}
+% \changes{v2.1e}{2000/03/28}{Change catcode of `:'.}
+% \changes{v2.1f}{2000/04/02}{Evoking of \package{bibunit} version
+% of cite commands moved to \macrott{bibunit}, restoration of
+% standard versions of \package{natbib} cite commands removed,
+% let \macrott{@startbibunitorrelax} to \macrott{relax}.
+% added.}
+% \changes{v2.1m}{2000/10/05}{Change of catcode of `:' removed;
+% encapsulate setting of \macrott{endlinechar} by braces.}
+%
+% This command does all the necessary initialization for a bibunit:
+% New versions of the cite commands are activated (|\@citew| is
+% used by package \package{overcite}), the macro |\@finishbibunit|
+% which is called by |\endbibunit| is let to close the local
+% auxiliary file, the number of the bibunits is incremented. Most
+% important, the local auxiliary file is read, so that citations of
+% the same reference in different bibliographies are handled
+% correctly for numerical citation schemes. Finally, the bibstyle
+% is written to the local auxiliary file.
+% \begin{macrocode}
+\def\@startbibunit{%
+ \global\let\@startbibunitorrelax\relax
+ \global\let\@finishbibunit\@finishstartedbibunit
+ \global\advance\@bibunitauxcnt 1
+ \if@filesw
+% \end{macrocode}
+% Input the local auxiliary file and prevent the creation of
+% unwanted spaces by setting |\endlinechar-1| (|\catcode`\^^M=9|
+% would also work here).
+% \begin{macrocode}
+ {\endlinechar-1
+ \@input{\@bibunitname.aux}}%
+ \immediate\openout\@bibunitaux\@bibunitname.aux
+ \immediate\write\@bibunitaux{\string\bibstyle{\@localbibstyle}}%
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \noindent When bibunits are specified by chapters or sections, a new
+% chapter or section marks both the end of the old and the start of the
+% new bibunit by calling |\endbibunit|. For the first chapter or section,
+% the command |\@finishbibunit| has to be defined (to do nothing),
+% which is done here.
+% \begin{macrocode}
+\let\@finishbibunit\relax
+% \end{macrocode}
+%
+%
+% \begin{macro}{\@finishstartedbibunit}
+% \changes{v2.2c}{2003/07/27}{Input of \macrott{@bibunitname.aux} added.}
+%
+% Close the local auxiliary file.
+% \begin{macrocode}
+\def\@finishstartedbibunit{%
+ \if@filesw
+ \immediate\closeout\@bibunitaux
+ \fi
+% \end{macrocode}
+% Check for if the labels have changed and a ``Rerun to get
+% cross-references right'' warning needs to be given. The mechanism
+% is the same as in |\enddocument|: redefine |\bibcite| to check
+% if the labels have changed and then read the auxiliary file.
+% Since we have changed |\bibcite| to call directly |\@namedef|, we
+% use a variant |\@xtestdef| of \LaTeX's\ |\@testdef| for this job.
+% Also, we do not have to |\makeatletter| before reading
+% |\@bibunitaux|, because this file is supposed to contain only
+% bibliography related macros without any |@|'s.
+% But we do have to change |\endlinechar| as above to prevent
+% the creation of unwanted spaces.
+%
+% \begin{macrocode}
+ \ifx\bibunits@rerun@warning\@empty
+ \if@filesw
+ {\endlinechar-1
+ \let\@namedef\@xtestdef
+ \@input{\@bibunitname.aux}}%
+ \fi
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\bibunits@rerunwaring}
+% \changes{v2.2c}{2003/07/27}{Macro added.}
+%
+% Initialize |\bibunits@rerun@warning| as empty and call it
+% |\AtEndDocument|. The definition of |\bibunits@rerun@warning| may
+% be changed in macro |\@xtestdef|.
+% \begin{macrocode}
+\let\bibunits@rerun@warning\@empty
+\AtEndDocument\bibunits@rerun@warning
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@xtestdef}
+% \changes{v2.2c}{2003/07/27}{Macro added.}
+%
+% Check if labels created by |\bibcite| in the local auxiliary
+% files may have have changed. Analogous to |\@testdef| of \LaTeX.
+% \begin{macrocode}
+\def\@xtestdef #1#2{%
+ \def\reserved@a{#2}%
+ \expandafter\ifx\csname#1\endcsname\reserved@a
+ \else
+ \gdef\bibunits@rerun@warning{%
+ \PackageWarningNoLine{bibunits}{Label(s) may have changed.
+ Rerun to get cross-references right}}%
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \subsubsection{Bibunits by chapters or sections}
+%
+% |\chapter| or |\section| substituting definition.
+%
+% \begin{macro}{\old@bibunit}
+% \begin{macro}{\@bibunit}
+% \begin{macro}{\@endbibunit}
+% \begin{macrocode}
+\let\old@bibunit\@gobble
+\def\@bibunit{\endbibunit\bibunit\old@bibunit}
+\def\@endbibunit{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\bibliographyunit}
+% \begin{macrocode}
+\def\bibliographyunit{%
+ \@endbibunit
+ \@ifnextchar[{\@bibliographyunit}{%
+ \global\let\old@bibunit\@gobble
+ \global\let\bibliography\std@bibliography
+ \global\let\bibliographystyle\std@bibliographystyle
+ \endbibunit
+ \gdef\@endbibunit{}}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@bibliographyunit}
+% \begin{macrocode}
+\def\@bibliographyunit[#1]{%
+ \global\let\bibliography\bu@bibliography
+ \global\let\bibliographystyle\bu@bibliographystyle
+ \global\let\old@bibunit#1
+ \global\let#1\@bibunit
+ \gdef\@endbibunit{\global\let#1\old@bibunit}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+%
+% \subsection{Insert a local bibliography}
+%
+% \begin{macro}{\putbib}
+% If the \BibTeX\ data file is given as an optional argument, evoke
+% |\@putbib| which uses this argument, otherwise call |\@putbib|
+% with the default \BibTeX\ data file stored in |\bu@bibdata|.
+%
+% \begin{macrocode}
+\def\putbib{\@ifnextchar[{\@putbib}{\@putbib[\bu@bibdata]}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@putbib}
+% \changes{v2.1a}{1999/11/15}{Set \macrott{temp@auxout} and activate
+% \macrott{bu@addtocontents}.}
+% \changes{v2.1c}{1999/11/24}{Change to respond to option
+% \option{labelstoglobalaux}.}
+% \changes{v2.1g}{2000/07/31}{Add activation of
+% \macrott{bu@bibitem} and \macrott{bu@lbibitem}, remove activation of
+% \macrott{bu@addtocontents} and redefinition of \macrott{@auxout}.}
+% \changes{v2.1h}{2000/08/07}{Remove code for \option{labelstoglobalaux}
+% and activation of \macrott{bu@bibitem} and
+% \macrott{bu@lbibitem}.}
+% \changes{v2.1i}{2000/09/30}{\macrott{@startbibunitorrelax} added.}
+% \changes{v2.1o}{2000/10/09}{Add local .bbl files to
+% \macrott{@filelist} by using \macrott{@input@} instead of
+% \macrott{@input}.}
+%
+% Similar to |\bibliography|, |\@putbib| writes the \BibTeX\ data
+% and |\@input|s the typeset bibliography |\@bibunitname.bbl|. Macro
+% |\@startbibunitorrelax| triggers a new bibunit and allows
+% |\putbib| to be issued before the first cite command within a
+% bibunit.
+%
+% \begin{macrocode}
+\def\@putbib[#1]{%
+ \@startbibunitorrelax
+ \if@filesw
+ \immediate\write\@bibunitaux{\string\bibdata{#1}}%
+ \fi
+ \@input@{\@bibunitname.bbl}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\bu@addtocontents}
+% \changes{v2.1a}{1999/11/15}{Add macro.}
+% \changes{v2.1g}{2000/07/31}{Remove macro.}
+%
+% [Macro removed.]
+% \end{macro}
+%
+%
+% \noindent The package allows the same cited item to occur in more than one
+% bibliography. Therefore the text which actually replaces the |\cite|
+% has to be kept locally, too. This can be switched off using
+% \option{labelstoglobalaux}.
+%
+% The text which replaces the |\cite| is created by the |\bibitem|
+% commands in the |.bbl| file which is |\@input|ed in |\@putbib|. The
+% |\bibitem| macro invokes macros |\@lbibitem| or |\@bibitem| which
+% write to |\@auxout|. By default, i.e., without option
+% \option{labelstoglobalaux} these commands are replaced by
+% \package{bibunits} version to write to the local auxiliary file of the
+% bibunit. The former meaning of |\@auxout| is saved in |\temp@auxout|
+% to be restored afterwards.
+%
+% Note that some packages, like \package{mparhack} or \komascript\
+% classes like \class{scrartcl} with option \option{bibtotoc} also write
+% material to |\@auxout| while inside |\thebibliography| within the
+% |.bbl| file. Therefore, redefining |\@auxout| in |\putbib| would
+% result in erroneously writing this material to the local auxiliary
+% file. Therefore, only the commands which actually write, i.e.,
+% |\@bibitem| and |\@lbibitem|, are redefined to write to the local
+% auxiliary file.
+%
+% Note that the redefined command |\bibliography| which generates a global
+% bibliography uses the same mechanism to write the replacement text
+% for the cite commands to |bu.aux|.
+%
+%
+% \begin{macro}{\std@bibitem}
+% \begin{macro}{\std@lbibitem}
+% \begin{macro}{\@bibitem}
+% \begin{macro}{\@lbibitem}
+% \changes{v2.1g}{2000/07/31}{Add macros.}
+% \changes{v2.1h}{2000/08/07}{Direct redefinition of
+% \macrott{@bibitem} and \macrott{@lbibitem} instead of
+% definition of local \macrott{bu} versions, but only if
+% \macrott{labelstoglobalaux} is false. Setting of
+% \macrott{temp@auxout} added.}
+%
+% Define new versions of |\@bibitem| and |\@lbibitem| which write
+% to |\bibunitaux| instead of |\@auxout|.
+% Encapsulation with braces instead of the two |let|s results in
+% |\@noitemerr| for the \textsf{thebibliography} environment.
+% \begin{macrocode}
+\AtBeginDocument{%
+ \iflabelstoglobalaux
+ \else
+ \let\std@bibitem\@bibitem
+ \let\std@lbibitem\@lbibitem
+ \def\@bibitem#1{%
+ \let\temp@auxout\@auxout
+ \let\@auxout\@bibunitaux
+ \std@bibitem{#1}%
+ \let\@auxout\temp@auxout
+ }
+ \def\@lbibitem[#1]#2{%
+ \let\temp@auxout\@auxout
+ \let\@auxout\@bibunitaux
+ \std@lbibitem[#1]{#2}%
+ \let\@auxout\temp@auxout
+ }
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+%
+% \subsection{Allow commands to be used not only in preamble}
+%
+% \changes{v1.0f}{1998/12/29}{Remove \macrott{bibcite} from
+% the list of preamble commands.}
+%
+% To handle citations of the same cited item in more than one
+% bibliography, replacement text for the citation is written to the
+% local auxiliary file. In subsequent runs of \LaTeX, this file is
+% read at the beginning of the bibunit.
+%
+%
+% \begin{macro}{\remequivalent}
+% \begin{macro}{\plugh}
+% \begin{macro}{\hgulp}
+% The local auxiliary file contains |\bibcite| commands, which can be
+% used only in the preamble in some older version of \LaTeX. For
+% compatibility with these versions, macros to remove an item from
+% a list are provided (see the \TeX book, p.\ 380; the only change
+% is the separator |\do| instead of |\\|).
+% \begin{macrocode}
+\def\remequivalent#1\from#2{%
+ \let\given=#1%
+ \ifx#2\empty
+ \else
+ \edef#2{\expandafter\plugh#2\plugh}%
+ \fi
+}
+\def\plugh\do#1#2{%
+ \ifx#1\given
+ \else
+ \noexpand\do\noexpand#1%
+ \fi
+ \ifx#2\plugh
+ \hgulp\fi\plugh#2%
+}
+\def\hgulp\fi\plugh\plugh{\fi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% Now we are ready to remove |\bibcite| from the |\@preamblecmds| list.
+% \begin{macrocode}
+\remequivalent\bibcite\from\@preamblecmds
+% \end{macrocode}
+%
+%
+% \medskip
+% The command |\bibcite| calls |\@newl@bel| to create new
+% labels. This is by default only allowed as a preamble command and
+% would cause a `Can be used only in preamble' warning. Instead of
+% removing |\@newl@bel| from the list of preamble command (like
+% |\bibcite|), we redefine |\bibcite| to directly call |\@namedef| and
+% issue no warning. We decided not to give even an info, because
+% multiple cited references should be perfectly normal to
+% \package{bibunits}. Similarly, we modify \package{natbib}'s
+% |\bibcite|.
+%
+%
+% \begin{macro}{\bibcite}
+% \changes{v2.0a}{1999/06/02}{\package{natbib} compatibility.}
+% \changes{v2.0d}{1999/09/27}{Implementation streamlined.}
+% \changes{v2.1d}{2000/01/27}{\macrott{@namedef} not defined
+% \macrott{global}.}
+% \changes{v2.1h}{2000/08/06}{\macrott{@namedef} again defined
+% \macrott{global}.}
+%
+% \begin{macrocode}
+\AtBeginDocument{%
+ \@ifpackageloaded{natbib}%
+ {\renewcommand\bibcite[2]{\global\@namedef{b@#1\@extra@binfo}{#2}}}%
+ {\renewcommand\bibcite[2]{\global\@namedef{b@#1}{#2}}}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+%
+% \subsection{Package \package{babel} compatibility}
+%
+% \begin{macro}{\@input}
+% \begin{macro}{\std@@citex}
+% \begin{macro}{\bu@@citex}
+% \changes{v2.1m}{2000/10/05}{Redefinition of \macrott{std@@citex},
+% \macrott{@input} and, if \package{natbib} is loaded, of
+% \macrott{bu@@citex}.}
+% \changes{v2.2e}{2003/08/18}{Package \package{jurabib} specific
+% redefinition of \macrott{std@@citex} and \macrott{bu@@citex}.}
+%
+% If \package{babel} with options \option{frenchb} is loaded, some
+% characters like the colon `:' are made active. Since a colon
+% frequently appears within a cite key, active characters have to
+% be switched off for various commands. This can be done using
+% |\bbl@redefine|.
+%
+% First, check if \package{babel} is loaded, by checking if |\bbl@redefine|
+% is defined. In this case, |\bbl@redefine| commands.
+% \begin{macrocode}
+\AtBeginDocument{%
+ \@ifundefined{bbl@redefine}%
+ {}%
+ {%
+ \bbl@redefine\@input#1{%
+ \@safe@activestrue\org@@input{#1}\@safe@activesfalse}%
+ \@ifpackageloaded{natbib}%
+ {%
+ \bbl@redefine\std@@citex[#1][#2]#3{%
+ \@safe@activestrue\org@std@@citex[#1][#2]{#3}\@safe@activesfalse}%
+ \bbl@redefine\bu@@citex[#1][#2]#3{%
+ \@safe@activestrue\org@bu@@citex[#1][#2]{#3}\@safe@activesfalse}%
+ }%
+ {
+ \@ifpackageloaded{jurabib}%
+ {%
+ \bbl@redefine\std@@citex[#1][#2]#3{%
+ \@safe@activestrue\org@std@@citex[#1][#2]{#3}\@safe@activesfalse}%
+ \bbl@redefine\bu@@citex[#1][#2]#3{%
+ \@safe@activestrue\org@bu@@citex[#1][#2]{#3}\@safe@activesfalse}%
+ }%
+ {% neither natbib nor jurabib loaded
+ \bbl@redefine\std@@citex[#1]#2{%
+ \@safe@activestrue\org@std@@citex[#1]{#2}\@safe@activesfalse}%
+ }%
+ }%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macrocode}
+%</package>
+% \end{macrocode}
+%
+% \PrintIndex
+% \PrintChanges
+% \Finale
+%
diff --git a/Master/texmf-dist/source/latex/bibunits/bibunits.ins b/Master/texmf-dist/source/latex/bibunits/bibunits.ins
new file mode 100644
index 00000000000..38bc72528b8
--- /dev/null
+++ b/Master/texmf-dist/source/latex/bibunits/bibunits.ins
@@ -0,0 +1,58 @@
+%
+% This is file `bibunits.ins',
+% for extracting package files from the original source file
+% `bibunits.dtx'.
+%
+% This work may be distributed and/or modified under the conditions of
+% the LaTeX Project Public License, either version 1.3 of this license
+% or any later version. The latest version of this license is in
+% http://www.latex-project.org/lppl.txt and version 1.3 or later is
+% part of all distributions of LaTeX version 2003/12/01 or later.
+%
+% To produce the package run bibunits.ins through LaTeX.
+%
+% Copyright (C) 2004 Thorsten Hansen
+
+\input docstrip
+
+\preamble
+
+IMPORTANT NOTICE:
+
+This work may be distributed and/or modified under the conditions of
+the LaTeX Project Public License, either version 1.3 of this license
+or any later version. The latest version of this license is in
+http://www.latex-project.org/lppl.txt and version 1.3 or later is
+part of all distributions of LaTeX version 2003/12/01 or
+later.
+
+This work has the LPPL maintenance status "maintained". The Current
+Maintainer of this work is Thorsten Hansen.
+
+Any modified versions of this file must be renamed with new filenames
+distinct from bibunits.sty.
+
+This is a generated file. It may not be distributed without the
+original source file \inFileName.
+
+To produce the documentation run \inFileName through LaTeX.
+
+
+\endpreamble
+
+\generate{\file{bibunits.sty}{\from{bibunits.dtx}{package}}}
+
+\Msg{***********************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* `bibunits.sty'}
+\Msg{*}
+\Msg{* To produce the documentation run bibunits.dtx through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing}
+\Msg{***********************************************************}
+
+
+\endbatchfile
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 19:10:13 +0000