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+%% abntex2-num.bst, v-1.9.7 laurocesar
+%% Copyright 2012-2018 by abnTeX2 group at http://www.abntex.net.br/ 
+%%
+%% 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 (at your option) 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 2005/12/01 or later.
+%%
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the abnTeX2 team, led
+%% by Lauro César Araujo. Further information are available on 
+%% http://www.abntex.net.br/
+%%
+%% Creator and original mantainer: Gerald Weber <gweber@codigolivre.org.br>
+%% Copyright 2001-2003 by the abnTeX group at http://abntex.codigolivre.org.br
+%% 
+%% This file is an *extensive* modification from a file generated with the docstrip utility.
+%% The original source files were:
+%% merlin.mbs  (with options: `babel,nm-revf,aunm-semi,nmlm,x3,m3,dt-end,yr-com,xmth,vnum-x,volp-com,jwdpg,jwdvol,num-xser,btit-rm,bt-rm,pg-bk,add-pub,pub-date,pub-xpar,pre-pub,isbn,issn,pp,ed,abr,ednx,nfss')
+%% These sourefiles are copyrighted by Patrick W Daly
+
+ENTRY
+  { address author
+    booktitle booksubtitle
+    chapter conference-number conference-year conference-location
+    edition editor editortype
+    dimensions furtherresp
+    howpublished illustrated institution
+    isbn issn journal key month note marginnote number organization
+    org-short pages pagename
+    publisher reprinted-from reprinted-text school
+    series subtitle section title type url urlaccessdate
+    volume year year-presented
+    abnt-and-type
+    abnt-doi abnt-dont-use-etal
+    abnt-etal-cite abnt-etal-list abnt-etal-text abnt-emphasize abnt-experimental
+    abnt-full-initials
+    abnt-last-names abnt-ldots-type
+    abnt-missing-year abnt-cite-style abnt-no-etal-label abnt-note
+    abnt-repeated-author-omit abnt-repeated-title-omit
+    abnt-show-options abnt-refinfo abnt-thesis-year abnt-url-package
+    abnt-title-command
+    abnt-verbatim-entry
+    iso-abbreviation iso-author-punctuation iso-date-place
+    }{}{ label extra.label year.label}
+
+%revision string
+STRINGS { abnt.bst.revision }
+
+%general purpose strings
+STRINGS { r s t }
+
+%variables needed to implement the various abnt options
+STRINGS {abnt.etal.text abnt.emphasize previous.author previous.title}
+INTEGERS {abnt.alf  abnt.cite.style abnt.doi
+          abnt.experimental abnt.etal.cite abnt.etal.list
+          abnt.full.initials
+          abnt.last.names abnt.ldots.type
+          abnt.missing.year
+          abnt.refinfo  abnt.repeated.author.omit abnt.repeated.title.omit
+	  abnt.show.options abnt.and.type
+          abnt.title.command
+	  abnt.thesis.year
+	  abnt.url.package abnt.verbatim.entry
+	  iso.abbreviation iso.author.punctuation iso.date.place
+	  repeated.author}
+
+%needed for title formatting
+INTEGERS { title.lenght title.pos first.word no.bracket}
+STRINGS { title.char}
+
+%needed for controlling the sentence position
+INTEGERS {output.state before.all mid.sentence after.sentence after.block }
+
+%needed for url identification
+INTEGERS {url.type}
+
+%static values for options
+%values for abnt.doi
+FUNCTION {abnt.doi.expand.to.url} {#0} %expands a doi address to its url correspondent
+FUNCTION {abnt.doi.link}          {#1} %links doi to its url correspondent
+FUNCTION {abnt.doi.leave.as.is}   {#2} %shows doi as is, external viewer will have
+                                       %to know what to do with a "doi:" document
+
+%values for url types
+FUNCTION {unknown.url} {#0}
+FUNCTION {http.url}    {#1}
+FUNCTION {file.url}    {#2}
+FUNCTION {ftp.url}     {#3}
+FUNCTION {doi.url}     {#4}
+FUNCTION {mailto.url}  {#5}
+
+FUNCTION {init.state.consts}
+{ #0 'before.all :=
+  #1 'mid.sentence :=
+  #2 'after.sentence :=
+  #3 'after.block :=
+}
+
+
+%output.nonnull decides what is written before the argument s, if a comma, period etc.
+FUNCTION {output.nonnull}
+{ 's :=                                     %the argument is written into s
+  output.state mid.sentence =
+    { ", " * write$ }                       %mid.sentence first write comma
+    { output.state after.block =
+        { add.period$ write$ newline$ }
+        { output.state before.all = 'write$
+            { add.period$ " " * write$ }
+          if$}
+      if$
+      mid.sentence 'output.state := }
+  if$
+  s                                         %now comes s
+}
+FUNCTION {output.nonnull.dash}
+{ 's :=                                   %the argument is written into s
+  output.state mid.sentence =
+    { " --- " * write$ }                       %mid.sentence first write comma
+    { output.state after.block =
+        { add.period$ write$ newline$ write$}
+        { output.state before.all = 'write$
+            { add.period$ " " * write$ }
+          if$}
+      if$
+      mid.sentence 'output.state := }
+  if$
+  s                                         %now comes s
+}
+FUNCTION {output}     %does nothing or calls output.nonull
+{ duplicate$ empty$
+    'pop$
+    'output.nonnull
+  if$
+}
+FUNCTION {output.dash}     %does nothing or calls output.nonull
+{ duplicate$ empty$
+    'pop$
+    'output.nonnull.dash
+  if$
+}
+FUNCTION {output.check}  %like ouput, but complains if t empty
+{ 't :=
+  duplicate$ empty$
+    { pop$ "campo " t * " vazio em " * cite$ * warning$ }
+    'output.nonnull
+  if$
+}
+
+FUNCTION {new.block}
+{ output.state before.all =
+    'skip$
+    { after.block 'output.state := }
+  if$
+}
+FUNCTION {new.sentence}
+{ output.state after.block =
+    'skip$
+    { output.state before.all =
+        'skip$
+        { after.sentence 'output.state := }
+      if$
+    }
+  if$
+}
+FUNCTION {add.blank} {  " " * before.all 'output.state :=}
+
+FUNCTION {date.block} {new.block}
+
+FUNCTION {not}
+{   { #0 }
+    { #1 }
+  if$
+}
+FUNCTION {and}
+{   'skip$
+    { pop$ #0 }
+  if$
+}
+FUNCTION {or}
+{   { pop$ #1 }
+    'skip$
+  if$
+}
+FUNCTION {new.block.checka}
+{ empty$
+    'skip$
+    'new.block
+  if$
+}
+FUNCTION {new.block.checkb}
+{ empty$
+  swap$ empty$
+  and
+    'skip$
+    'new.block
+  if$
+}
+FUNCTION {new.sentence.checka}
+{ empty$
+    'skip$
+    'new.sentence
+  if$
+}
+FUNCTION {new.sentence.checkb}
+{ empty$
+  swap$ empty$
+  and
+    'skip$
+    'new.sentence
+  if$
+}
+FUNCTION {field.or.null}
+{ duplicate$ empty$
+    { pop$ "" }
+    'skip$
+  if$
+}
+FUNCTION {emphasize}
+{ duplicate$ empty$
+    { pop$ "" }
+    { abnt.emphasize "{"  *  swap$ * "}" * }
+  if$
+}
+
+
+FUNCTION {tie.or.space.prefix} %if text length less than 3 chars. uses a tie
+{ duplicate$ text.length$ #5 <
+    { "~" }
+    { " " }
+  if$
+  swap$
+}
+
+FUNCTION {no.space} { { "" } swap$ }
+
+
+FUNCTION {space.word} { " " swap$ * " " * }
+
+FUNCTION {bbl.and}
+{ abnt.and.type #0 = {" e "} 'skip$ if$
+  abnt.and.type #1 = {" \& "} 'skip$ if$}
+FUNCTION {bbl.chapter} { "cap." }
+FUNCTION {bbl.colon} {": "}
+FUNCTION {bbl.editors} { "Ed." }
+FUNCTION {bbl.editor} { "Ed." }
+FUNCTION {bbl.edby} { "editado por" }
+FUNCTION {bbl.edition} { "ed." }
+FUNCTION {bbl.empty} {""}
+FUNCTION {bbl.etal}{abnt.etal.text "" = {""} {" " abnt.etal.text *} if$}
+FUNCTION {bbl.doi.url} {"http://dx.doi.org/"}
+FUNCTION {bbl.in}{ "In" iso.abbreviation 'skip$ { bbl.colon *} if$}
+FUNCTION {bbl.ldots} %#0 use nothing, #1 use \ldots, #2 use $\ldots$, 3# use {...}
+{abnt.ldots.type
+  {abnt.ldots.type #1 = {"\ldots"}   'skip$ if$
+   abnt.ldots.type #2 = {"$\ldots$"} 'skip$ if$
+   abnt.ldots.type #3 = {"{...}"}    'skip$ if$}
+  {""} %for #0 use nothing
+if$}
+FUNCTION {bbl.master}  { "Mestrado" }
+FUNCTION {bbl.missing.year}
+{abnt.missing.year
+  {"[s.d.]"} %#1
+  {""}       %#0
+ if$}
+FUNCTION {bbl.monography} { "Monografia" }
+FUNCTION {bbl.mthesis} { "Disserta\c{c}\~{a}o" }
+FUNCTION {bbl.no.address} {"[S.l.]"}
+FUNCTION {bbl.no.address.no.publisher} {"[S.l.: s.n.]"}
+FUNCTION {bbl.no.publisher} {"[s.n.]"}
+FUNCTION {bbl.number} { iso.abbreviation {"no."} {"n."} if$ }
+FUNCTION {bbl.nr} { "n." }
+FUNCTION {bbl.of} { "de" }
+FUNCTION {bbl.phd} { "Doutorado" }
+FUNCTION {bbl.phdthesis} { "Tese" }
+FUNCTION {bbl.pages}
+  {pagename empty$
+    { "p." }
+    {pagename}
+   if$
+   }
+FUNCTION {bbl.page} { bbl.pages }
+FUNCTION {bbl.reprint} {"Separata de"}
+FUNCTION {bbl.semicolon} { "; "}
+FUNCTION {bbl.same.field} {"\underline{\ \ \ \ \ \ \ \ }"}
+FUNCTION {bbl.techrep} { "Rel. Tec." }
+FUNCTION {bbl.url.accessdate}
+  {iso.abbreviation { "Cited "} {"Acesso em: "} if$}
+FUNCTION {bbl.url.available}
+{ iso.abbreviation {"Available from Internet: "} {"Dispon{\'\i}vel em: "} if$}
+FUNCTION {bbl.void} {""}
+FUNCTION {bbl.volume} { iso.abbreviation {"vol."} {"v."} if$ }
+
+
+MACRO {jan} {"jan."}
+MACRO {feb} {"fev."}
+MACRO {mar} {"mar."}
+MACRO {apr} {"abr."}
+MACRO {may} {"maio"}
+MACRO {jun} {"jun."}
+MACRO {jul} {"jul."}
+MACRO {aug} {"ago."}
+MACRO {sep} {"set."}
+MACRO {oct} {"out."}
+MACRO {nov} {"nov."}
+MACRO {dec} {"dez."}
+
+
+FUNCTION {is.num}
+{ chr.to.int$
+  duplicate$ "0" chr.to.int$ < not
+  swap$ "9" chr.to.int$ > not and
+}
+FUNCTION {str.to.int}
+{ duplicate$ is.num
+    {chr.to.int$ #48 -}
+    'skip$
+  if$
+}
+FUNCTION {bibinfo.check} %usage: field "field" bibinfo.check
+{ swap$ duplicate$ missing$
+    {pop$ pop$ ""}
+    { duplicate$ empty$
+        {swap$ pop$}
+        {swap$ pop$}
+      if$
+    }
+  if$
+}
+FUNCTION {bibinfo.warn}
+{ swap$
+  duplicate$ missing$
+    {swap$ "faltando " swap$ * " em " * cite$ * warning$ pop$ ""}
+    { duplicate$ empty$
+        {swap$ "vazio " swap$ * " em " * cite$ * warning$}
+        {swap$ pop$}
+      if$
+    }
+  if$
+}
+
+FUNCTION {write.field.verbatim}
+{
+duplicate$ missing$
+  {pop$ pop$} 
+  {
+  s text.length$ #0 >
+    {s "," * newline$ write$ "" 's :=}
+    'skip$
+  if$
+  swap$
+  "={" * swap$ * "}" *
+  s swap$ * 's :=
+  }
+if$
+}
+
+FUNCTION {write.entry.verbatim1}
+{
+   "address" 		address  		write.field.verbatim
+   "author" 		author   		write.field.verbatim
+   "booktitle" 		booktitle 		write.field.verbatim
+   "booksubtitle" 	booksubtitle 		write.field.verbatim
+   "chapter" 		chapter 		write.field.verbatim
+   "conference-number" 	conference-number 	write.field.verbatim
+   "conference-year" 	conference-year 	write.field.verbatim
+   "conference-location" conference-location 	write.field.verbatim
+   "edition" 		edition 		write.field.verbatim
+   "editor" 		editor 			write.field.verbatim
+   "editortype" 	editortype 		write.field.verbatim
+   "dimensions" 	dimensions 		write.field.verbatim
+   "furtherresp" 	furtherresp 		write.field.verbatim
+   "howpublished" 	howpublished 		write.field.verbatim
+   "illustrated" 	illustrated  		write.field.verbatim
+   "institution" 	institution 		write.field.verbatim
+   "isbn" 		isbn 			write.field.verbatim
+   "issn" 		issn 			write.field.verbatim
+   "journal" 		journal 		write.field.verbatim
+}
+FUNCTION {write.entry.verbatim2}
+{
+   "key" 		key 			write.field.verbatim
+   "month" 		month 			write.field.verbatim
+   "note" 		note 			write.field.verbatim
+   "marginnote" 	marginnote 		write.field.verbatim
+   "number" 		number 			write.field.verbatim
+   "organization" 	organization 		write.field.verbatim
+   "org-short" 		org-short 		write.field.verbatim
+   "pages" 		pages 			write.field.verbatim
+   "pagename" 		pagename 		write.field.verbatim
+   "publisher" 		publisher 		write.field.verbatim
+   "reprinted-from" 	reprinted-from 		write.field.verbatim
+   "reprinted-text" 	reprinted-text 		write.field.verbatim
+   "school" 		school 			write.field.verbatim
+   "series" 		series 			write.field.verbatim
+   "subtitle" 		subtitle 		write.field.verbatim
+   "section" 		section 		write.field.verbatim
+   "title" 		title 			write.field.verbatim
+   "type" 		type 			write.field.verbatim
+}
+FUNCTION {write.entry.verbatim3}
+{
+   "url" 		url 			write.field.verbatim
+   "urlaccessdate" 	urlaccessdate 		write.field.verbatim
+   "volume" 		volume 			write.field.verbatim
+   "year" 		year 			write.field.verbatim
+   "abnt-emphasize" 	abnt-emphasize 		write.field.verbatim
+   "abnt-experimental" 	abnt-experimental 	write.field.verbatim
+   "abnt-doi" 		abnt-doi	 	write.field.verbatim
+   "abnt-dont-use-etal" abnt-dont-use-etal 	write.field.verbatim
+   "abnt-full-initials" abnt-full-initials 	write.field.verbatim
+   "abnt-ldots-type" 	abnt-ldots-type 	write.field.verbatim
+   "abnt-missing-year" 	abnt-missing-year 	write.field.verbatim
+   "abnt-cite-style" 	abnt-cite-style 		write.field.verbatim
+   "abnt-no-etal-label" abnt-no-etal-label 	write.field.verbatim
+   %abnt-note
+   "abnt-repeated-author-omit" abnt-repeated-author-omit write.field.verbatim
+   "abnt-repeated-title-omit" abnt-repeated-title-omit write.field.verbatim
+   "abnt-show-options" 	abnt-show-options 	write.field.verbatim
+   "abnt-refinfo" 	abnt-refinfo 		write.field.verbatim
+   "abnt-thesis-year" 	abnt-thesis-year 	write.field.verbatim
+   "abnt-title-command" abnt-title-command 	write.field.verbatim
+   "abnt-url-package" 	abnt-url-package 	write.field.verbatim
+   "abnt-verbatim-entry" abnt-verbatim-entry 	write.field.verbatim
+}
+
+FUNCTION {write.entry.verbatim}
+{"" 's := "" 't :=
+  abnt.verbatim.entry
+  {"{\footnotesize\begin{verbatim}" newline$ write$
+   "@" type$ * "{" * cite$ * 's :=
+   write.entry.verbatim1
+   write.entry.verbatim2
+   write.entry.verbatim3
+   s "" = {"}"} {s "}" *} if$
+   newline$ write$
+   "\end{verbatim}}" newline$ write$}
+  {newline$}
+if$}
+
+STRINGS  { bibinfo}
+INTEGERS { nameptr namesleft numnames }
+
+FUNCTION {get.person} {"{vv }{ll}{, jj}{, ff}" format.name$}
+FUNCTION {get.last.name} {#1 "{ll}" format.name$}
+FUNCTION {get.first.name} {#1 "{ff}" format.name$}
+FUNCTION {get.von} {#1 "{vv}" format.name$}
+FUNCTION {get.jr} {#1 "{jj}" format.name$}
+FUNCTION {is.composed.von}
+  {get.person
+   get.von duplicate$ empty$ {pop$ #0}
+     {duplicate$
+      get.first.name empty$ not
+      swap$ get.last.name empty$ not and
+      } if$
+   }
+
+FUNCTION {recompose.name}
+  {get.person duplicate$ duplicate$ duplicate$
+   get.von #1 "{ll }" format.name$ swap$
+   get.last.name *
+   swap$ #1 "{, ff}" format.name$ *
+   swap$ get.von #1 "{ ff}" format.name$ *
+   }
+
+
+FUNCTION {format.single.name}
+{
+s nameptr get.person 'r :=
+abnt.last.names
+  {r #1 "{ll}{ jj}" format.name$ "u" change.case$
+   abnt.full.initials
+    {r #1 "{, ff}{ vv}" format.name$ *}
+    {r #1 "{, f.}{ vv}" format.name$ *}
+  if$}
+  {%r #1 is.composed.von {r #1 recompose.name 'r :=} 'skip$ if$
+   r #1 "{ll}" format.name$
+   #1 "{ll}" format.name$
+   r #1 "{ jj}" format.name$ * "u" change.case$
+   abnt.full.initials
+    {r #1 "{, ff}{ vv}" format.name$ *
+     r #1 "{ll}" format.name$
+     #1 "{ ff}{ vv}" format.name$ *}
+    {iso.author.punctuation
+      {r #1 "{, f{}}{ vv}" format.name$ *}
+      {r #1 "{, f.}{ vv}" format.name$ *} if$
+     r #1 "{ll}" format.name$
+     #1 "{ f.}{ vv}" format.name$ *}
+  if$}
+
+if$
+}
+FUNCTION {format.names}
+{ 'bibinfo :=  duplicate$ empty$ 'skip$
+  {'s :=
+   "" 't :=
+   #1 'nameptr :=  s num.names$ 'numnames :=
+    numnames 'namesleft :=
+    { namesleft #0 > }
+    { format.single.name
+      bibinfo bibinfo.check
+      't :=
+      nameptr #1 >
+        {nameptr #1 #1 + = numnames abnt.etal.list > and
+            {abnt.etal.list {"others" 't := #1 'namesleft :=} 'skip$ if$ }
+            'skip$
+          if$
+          namesleft #1 >
+            { "; " * t * }
+            { numnames #2 >
+                { "" * }
+                'skip$
+              if$
+              s nameptr "{ll}" format.name$ duplicate$ "others" =
+                { 't := }
+                { pop$ }
+              if$
+              t "others" =
+                { bbl.etal *}
+                { "; " * t *}
+              if$ }
+          if$ }
+        't
+      if$
+      nameptr #1 + 'nameptr :=
+      namesleft #1 - 'namesleft := }
+  while$
+  } if$
+}
+
+%from plain.bst
+FUNCTION {format.names.plain}
+{ 's :=
+  #1 'nameptr :=
+  s num.names$ 'numnames :=
+  numnames 'namesleft :=
+    { namesleft #0 > }
+    { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ 't :=
+      nameptr #1 >
+	{ namesleft #1 >
+	    { ", " * t * }
+	    { numnames #20 >
+		{ "," * }
+		'skip$
+	      if$
+	      t "others" =
+		{ bbl.etal * }
+		{ bbl.and * t * }
+	      if$
+	    }
+	  if$
+	}
+	't
+      if$
+      nameptr #1 + 'nameptr :=
+      namesleft #1 - 'namesleft :=
+    }
+  while$
+}
+FUNCTION {format.names.ed} {format.names}
+
+FUNCTION {format.authors}
+{
+author "author" format.names
+}
+
+FUNCTION {format.authors.plain}
+{
+author format.names.plain
+}
+
+FUNCTION {get.bbl.editor} { editor num.names$ #1 > 'bbl.editors 'bbl.editor if$ }
+
+
+FUNCTION {format.book.pages}
+{ pages "pages" bibinfo.check  duplicate$ empty$
+    'skip$
+    {  "~" * bbl.pages * }
+  if$
+}
+FUNCTION {format.dimensions}
+{ dimensions empty$
+    'skip$
+    { dimensions output}
+  if$
+}
+FUNCTION {format.furtherresp}
+{ furtherresp empty$
+    'skip$
+    { furtherresp output}
+  if$
+}
+FUNCTION {format.illustrated}
+{ illustrated missing$
+    'skip$
+    {illustrated empty$
+      {"il." output}
+      {illustrated output}
+     if$}
+  if$
+}
+FUNCTION {format.isbn}
+{ isbn "isbn" bibinfo.check duplicate$ empty$ 
+    'skip$
+    {new.block "ISBN " swap$ *}
+  if$
+}
+
+FUNCTION {format.issn}
+{ issn "issn" bibinfo.check
+  duplicate$ empty$ 'skip$
+    {new.block "ISSN " swap$ *}
+  if$
+}
+
+FUNCTION {format.note}
+{ note empty$
+    { "" }
+    { note #1 #1 substring$
+      duplicate$ "{" =
+        'skip$
+        { output.state mid.sentence =
+          { "l" }
+          { "u" }
+        if$
+        change.case$ }
+      if$
+      note #2 global.max$ substring$ * "note" bibinfo.check }
+  if$
+}
+
+FUNCTION {format.howpublished}
+{ howpublished empty$
+    { "" }
+    { howpublished #1 #1 substring$
+      duplicate$ "{" =
+        'skip$
+        { output.state mid.sentence =
+          { "l" }
+          { "u" }
+        if$
+        change.case$ }
+      if$
+      howpublished #2 global.max$ substring$ * "howpublished" bibinfo.check }
+  if$
+}
+
+
+%ABNT styles require that the title acts as an author if
+%typical author fields are absent. In this case the first
+%word is uppercase. Our main problem is to establish what
+%the first word actually is since portuguese uses accents.
+%For example: Fun{\c c}\ão (Função) is a whole word but contains a
+%space, but if we write Fun\c{c}\ão \c is converted to uppercase...
+%You get the problem, don't you?
+FUNCTION {format.title.as.author}
+{ 's := %holds the title
+  #1 'title.pos := %our position in the title
+  #1 'first.word := %boolean, true if we already have the first word
+  #1 'no.bracket := %boolean, false if we are inside a {}
+  "" 't := %holds the first title.pos characters of the title
+  {first.word}
+    {s title.pos #1 substring$ 'title.char :=
+      %checks if the character is a {
+      title.char "{" = {#0 'no.bracket :=} 'skip$ if$
+      %if we are in a bracket
+      no.bracket 'skip$ {title.char "}" = {#1 'no.bracket :=} 'skip$ if$}  if$
+      type$ "journalpart" =
+        {title.char "." = title.char ":" = or title.char "!" = or
+	 title.char "," = or title.char ";" = or title.char "?" = or}
+	{title.char " " =}
+      if$ s t = or no.bracket and
+       {#0 'first.word :=
+       t title.char * "u" change.case$
+       title.pos #1 + 'title.pos :=
+       s title.pos global.max$ substring$ * 's :=}
+       {title.pos #1 + 'title.pos := t title.char * 't :=}
+     if$
+     }
+  while$
+s
+}
+
+
+%compares current title with the title of the previous entry
+FUNCTION {compare.title}
+{abnt.repeated.title.omit
+  {duplicate$ "" = 'skip$
+    {duplicate$ previous.title = repeated.author and
+      {duplicate$ 'previous.title := pop$ bbl.same.field}
+      {duplicate$ 'previous.title :=}
+     if$}
+   if$}
+ 'skip$
+ if$
+}
+
+FUNCTION {apply.title.command}
+{abnt.title.command
+  {duplicate$ empty$ 'skip$
+    {"\bibtextitlecommand{" type$ * "}{" * swap$ * "}" *}
+    if$}
+  'skip$ if$
+}
+
+FUNCTION {format.title}
+{author empty$ editor empty$ and organization empty$ and
+  {title format.title.as.author}
+  {title  duplicate$ empty$ {pop$ ""} {"t" change.case$} if$}
+ if$
+ subtitle  empty$ 'skip$ {subtitle ": " swap$ * "t" change.case$ *} if$
+ apply.title.command
+ compare.title
+}
+
+FUNCTION {n.dashify}
+{
+  't :=
+  ""
+    { t empty$ not }
+    { t #1 #1 substring$ "-" =
+        { t #1 #2 substring$ "--" = not
+            { "--" *
+              t #2 global.max$ substring$ 't :=
+            }
+            {   { t #1 #1 substring$ "-" = }
+                { "-" *
+                  t #2 global.max$ substring$ 't :=
+                }
+              while$
+            }
+          if$
+        }
+        { t #1 #1 substring$ *
+          t #2 global.max$ substring$ 't :=
+        }
+      if$
+    }
+  while$
+}
+
+FUNCTION {word.in} { bbl.in " " * }
+
+FUNCTION {format.month}
+{ month empty$ 'skip$
+  {month "month" bibinfo.check}
+  if$
+}
+
+FUNCTION {format.date}
+{ year empty$
+    { month empty$
+	{ bbl.missing.year }
+	{ "existe o campo month (mês) mas não o campo year (ano) em " cite$ * warning$ month}
+      if$}
+    { month empty$
+	{ year n.dashify}
+	{ month " " * year * }
+      if$}
+  if$
+}
+FUNCTION {format.btitle}
+{author empty$ editor empty$ and organization empty$ and
+    {title format.title.as.author "title" bibinfo.check duplicate$ empty$ 'skip$ {} if$
+    subtitle  empty$ 'skip$ {subtitle ": " swap$ * "t" change.case$ *} if$}
+    {title "title" bibinfo.check emphasize duplicate$ empty$ 'skip$ {} if$
+    subtitle  empty$ 'skip$ {subtitle ": " swap$ * "t" change.case$ *} if$}
+if$
+apply.title.command
+compare.title
+}
+FUNCTION {either.or.check}
+{ empty$
+    'pop$
+    { "não posso usar ambos " swap$ * " os campos em " * cite$ * warning$ }
+  if$
+}
+
+FUNCTION {format.volume} %leaves formatted or empty volume on the stack
+{volume duplicate$ empty$
+   'skip$
+   {volume #1 #1 substring$ is.num
+      {bbl.volume swap$ tie.or.space.prefix * *}
+      'skip$
+    if$}
+ if$
+}
+
+FUNCTION {format.number} %leaves formatted or empty number on the stack
+{ number duplicate$ empty$
+    'skip$
+    {bbl.number swap$ tie.or.space.prefix * *}
+  if$
+}
+
+FUNCTION {format.patent.number}
+{ number
+}
+
+FUNCTION {format.bvolume}
+{ volume empty$
+    { "" }
+    { format.volume
+      number empty$ 'skip$ {output format.number} if$
+      series "series" bibinfo.check
+      duplicate$ empty$ 'pop$
+        { swap$ bbl.of space.word * swap$
+          emphasize * }
+      if$
+    }
+  if$
+}
+
+FUNCTION {format.bvolume.if.no.series}
+{ series empty$
+    { format.bvolume }
+    { "" }
+  if$
+}
+
+
+FUNCTION {format.number.or.volume}
+{number empty$
+  {format.volume}
+  {number} %we use the pure number here without leading "n."
+ if$
+}
+
+FUNCTION {format.volume.and.number}
+{format.volume output
+ format.number
+}
+
+FUNCTION {format.volume.number.series}
+{ number empty$ volume empty$ and
+  { series empty$
+    { "" }
+    {" (" series "series" bibinfo.check * ")" *}
+    if$}
+  { series empty$
+    {""} %{ format.number.or.volume }
+    { " ("  series "series" bibinfo.check * ", " *
+     format.number.or.volume * ")" *  }
+     if$ }
+  if$
+}
+
+FUNCTION {extract.num}
+{ duplicate$ 't :=
+  "" 's :=
+  { t empty$ not }
+  { t #1 #1 substring$
+    t #2 global.max$ substring$ 't :=
+    duplicate$ is.num
+      { s swap$ * 's := }
+      { pop$ "" 't := }
+    if$ }
+  while$
+  s empty$
+    'skip$
+    { pop$ s }
+  if$
+}
+ 
+FUNCTION {format.edition}
+{ edition duplicate$ empty$ 'skip$
+    {output.state mid.sentence = { "l" } { "t" } if$ change.case$
+      "edition" bibinfo.check
+    edition #1 #1 substring$ is.num {". " * bbl.edition * } 'skip$ if$}
+  if$
+}
+INTEGERS { multiresult }
+FUNCTION {multi.page.check}
+{ 't :=
+  #0 'multiresult :=
+    { multiresult not
+      t empty$ not
+      and }
+    { t #1 #1 substring$
+      duplicate$ "-" =
+      swap$ duplicate$ "," =
+      swap$ "+" =
+      or or
+        { #1 'multiresult := }
+        { t #2 global.max$ substring$ 't := }
+      if$ }
+  while$
+  multiresult
+}
+FUNCTION {format.pages}
+{ pages duplicate$ empty$ 'skip$
+    { duplicate$ multi.page.check
+        { n.dashify bbl.pages swap$}
+        { bbl.page swap$ }
+      if$
+      tie.or.space.prefix "pages" bibinfo.check * * }
+  if$
+}
+FUNCTION {format.journal.pages}
+{ pages empty$ {""}
+    { pages n.dashify bbl.pages
+          swap$ tie.or.space.prefix "pages" bibinfo.check * *}
+  if$
+}
+
+FUNCTION {get.url.type}
+{s #1 #5 substring$ "http:" = {http.url}
+ {s #1 #6 substring$ "https:" = {http.url}
+  {s #1 #5 substring$ "file:" = {file.url}
+   {s #1 #4 substring$ "ftp:"  = {ftp.url}
+    {s #1 #4 substring$ "doi:"  = {doi.url}
+     {s #1 #7 substring$ "mailto:" = {mailto.url} {unknown.url} if$}
+      if$}
+     if$}
+    if$}
+   if$}
+  if$
+ 'url.type :=
+}
+
+FUNCTION {expand.doi}
+{s
+url.type doi.url =
+  {#5 global.max$ substring$ bbl.doi.url swap$ *}
+  'skip$ if$
+}
+
+INTEGERS {url.pos url.length}
+FUNCTION {filter.url.tex}
+{s text.length$ #1 + 'url.length :=
+ #1 'url.pos := "" 't :=
+  {url.pos url.length <}
+    {s url.pos #1 substring$
+    duplicate$ "_" = {pop$ "\underline{\ }" } 'skip$ if$
+    duplicate$ "%" = {pop$ "\%" } 'skip$ if$
+    duplicate$ "&" = {pop$ "\&" } 'skip$ if$
+    duplicate$ "~" = {pop$ "\~{}" } 'skip$ if$
+    duplicate$ "/" = {pop$ "\-/" } 'skip$ if$
+    duplicate$ "." = {pop$ "\-." } 'skip$ if$
+    duplicate$ "\" = {pop$ "{\textbackslash}" } 'skip$ if$
+    duplicate$ "#" = {pop$ "\#" } 'skip$ if$
+    duplicate$ "_" = {pop$ "\_" } 'skip$ if$
+    t swap$ * 't :=
+    url.pos #1 + 'url.pos :=
+    }
+  while$
+t
+}
+FUNCTION {filter.url.html}
+{s text.length$ #1 + 'url.length :=
+ #1 'url.pos := "" 't :=
+  {url.pos url.length <}
+    {s url.pos #1 substring$
+    duplicate$ "%" = {pop$ "\%" } 'skip$ if$
+    duplicate$ "#" = {pop$ "\#" } 'skip$ if$
+    duplicate$ "_" = {pop$ "\_" } 'skip$ if$
+    t swap$ * 't :=
+    url.pos #1 + 'url.pos :=
+    }
+  while$
+t
+}
+
+FUNCTION {compose.url}
+{'s :=
+ get.url.type
+ bbl.url.available
+ abnt.url.package #0 =
+   { "$<$"   *
+   abnt.doi abnt.doi.expand.to.url = 'expand.doi {s} if$
+   * "$>$" *} 'skip$ if$
+ abnt.url.package #1 =
+   { "\url{" * filter.url.html * "}" *} 'skip$ if$
+ abnt.url.package #2 =
+   {url.type http.url =
+     {"\htmladdnormallink{$<$" * filter.url.tex * "$>$}{" * filter.url.html * "}" *}
+     'skip$ if$
+    url.type doi.url = url.type ftp.url = or url.type mailto.url = or
+     {"\htmladdnormallink{$<$" *
+      abnt.doi abnt.doi.expand.to.url = 'expand.doi {s} if$
+      * "$>$}{" *
+      abnt.doi abnt.doi.leave.as.is = {s} 'expand.doi if$
+      * "}" * }
+     'skip$ if$
+    url.type unknown.url =
+     {"$<$" * filter.url.tex * "$>$" *}
+     'skip$ if$} 'skip$ if$
+}
+FUNCTION {format.url}
+{ url empty$ 'skip$
+    {url compose.url output new.sentence }
+  if$
+ urlaccessdate duplicate$ empty$ 'skip$
+    { bbl.url.accessdate swap$ *}
+  if$
+  "urlaccessdate" bibinfo.check output new.sentence
+}
+
+FUNCTION {format.conference.info}
+{ conference-number empty$
+    'skip$
+    {conference-number "." * output}
+  if$
+  conference-year empty$
+    'skip$
+    {conference-year output}
+  if$
+  conference-location empty$
+    'skip$
+    {conference-location output}
+  if$
+  new.sentence
+}
+
+
+FUNCTION {format.chapter.pages}
+{ chapter empty$
+    'format.pages
+    { type empty$
+        { bbl.chapter }
+        { type "l" change.case$
+          "type" bibinfo.check }
+      if$
+      chapter tie.or.space.prefix "chapter" bibinfo.check * *
+      pages empty$
+        'skip$
+        { ", " * format.pages * }
+      if$ }
+  if$
+}
+
+FUNCTION {format.booktitle}
+{author empty$ editor empty$ and organization empty$ and
+    {booktitle format.title.as.author "booktitle" bibinfo.check duplicate$ empty$ 'skip$ {} if$
+    booksubtitle  empty$ 'skip$ {booksubtitle ": " swap$ * "t" change.case$ *
+    apply.title.command} if$}
+    {booktitle "booktitle" bibinfo.check emphasize duplicate$ empty$ 'skip$ {} if$
+    booksubtitle  empty$ 'skip$ {booksubtitle ": " swap$ * "t" change.case$ *
+    apply.title.command} if$}
+if$
+}
+FUNCTION {format.editors}
+{ editor  empty$
+   {"inbook" type$ = 'bbl.same.field 'skip$ if$}
+   {author empty$
+    {editor "editor" format.names " (" *
+     editortype empty$ {bbl.editor} {editortype} if$
+     ")" * * }
+    {"inbook" type$ =
+      {bbl.same.field }
+      {editor "editor" format.names " (" *
+       editortype empty$ {bbl.editor} {editortype} if$
+       ")" * *}
+    if$}
+   if$}
+  if$
+}
+FUNCTION {format.in.ed.booktitle}
+{ editor empty$
+    {organization empty$ not author empty$ not and    %if one of two not empty
+      {word.in organization "u" change.case$ * output
+       format.conference.info
+       booktitle empty$ {""} {new.sentence format.booktitle} if$}
+      {word.in
+       organization empty$ author empty$ and 'skip$
+         {"inbook" type$ = {bbl.same.field * output new.sentence ""}
+         'skip$ if$  } if$
+       booktitle empty$ 'skip$ {format.booktitle *} if$}
+     if$}
+    {word.in format.editors * output
+     booktitle empty$ {""} {new.sentence format.booktitle} if$}
+  if$
+  output
+  new.sentence
+}
+FUNCTION {empty.misc.check}
+{ author empty$ title empty$ howpublished empty$
+  month empty$ year empty$ note empty$
+  and and and and and
+  key empty$ not and
+    { "todos os campos relevantes estão vazios ou faltando em " cite$ * warning$ }
+    'skip$
+  if$
+}
+FUNCTION {format.type}
+{ type "type" bibinfo.check
+  duplicate$ empty$ 'skip$
+    {new.block "" swap$ * }
+  if$
+}
+
+
+FUNCTION {format.year}
+{year empty$
+   { "campo year vazio ou faltando em " cite$ *
+    abnt.missing.year {" (vou colocar [s.d.])" *} 'skip$ if$ warning$
+    abnt.missing.year {", " } {""} if$ bbl.missing.year *}
+    {year n.dashify "year" bibinfo.check}
+if$
+}
+
+FUNCTION {format.year.presented}
+{year-presented empty$
+   {""}
+   {year-presented n.dashify}
+if$
+}
+
+FUNCTION {format.field.address}
+{ 't :=
+  address empty$ organization empty$ and url empty$ and t empty$ and
+    {bbl.no.address.no.publisher}
+    {address empty$
+      %if an url is present we don't give a missing address "[s.l.]" notice
+      {url empty$  {bbl.no.address ": "} {"" ""} if$}
+      {address ": "}
+    if$
+    t empty$
+      {%if an organization is present then it is OK not to have a publisher
+       organization empty$ {* bbl.no.publisher * } 'pop$ if$}
+      {* t * }
+     if$}
+  if$
+}
+
+FUNCTION {format.address}
+{address empty$
+  { bbl.no.address}
+  { address}
+ if$
+}
+
+FUNCTION {format.publisher.address}
+{ publisher "publisher" bibinfo.check format.field.address}
+
+FUNCTION {format.publisher.address.relax}
+{publisher empty$ address empty$ and {""}
+ {publisher "publisher" bibinfo.check format.field.address}
+if$}
+
+FUNCTION {format.organization.address}
+{ organization "organization" bibinfo.check format.field.address}
+
+%retains current authorship for future use
+FUNCTION {compare.authorship}
+{abnt.repeated.author.omit
+  {duplicate$ "" = 'skip$
+    {duplicate$ previous.author =
+      {duplicate$ 'previous.author :=
+       pop$ bbl.same.field
+       #1 'repeated.author :=}
+      {duplicate$ 'previous.author :=
+       #0 'repeated.author :=}
+     if$}
+   if$}
+ 'skip$
+ if$
+}
+
+FUNCTION {format.author.or.organization}
+{  author empty$
+    { organization empty$ 'skip$
+      { organization "u" change.case$ "organization"  bibinfo.check output}
+      if$}
+    { format.authors output.nonnull }
+  if$
+  compare.authorship
+}
+
+
+FUNCTION {format.editor.or.organization}
+{  editor empty$
+    { organization empty$ 'skip$
+      { organization "u" change.case$ "organization"  bibinfo.check output}
+      if$}
+    { format.editors output.nonnull }
+  if$
+  compare.authorship
+}
+
+FUNCTION {format.author.or.editor.or.organization}
+{ author empty$
+    { editor empty$
+        { organization empty$
+	    'skip$
+            { organization "u" change.case$ "organization"  bibinfo.check output}
+          if$}
+        { format.editors output.nonnull }
+      if$}
+    { format.authors output.nonnull }
+  if$
+  compare.authorship
+}
+
+FUNCTION {format.reprint}
+{ reprinted-text missing$
+    {""}
+    {reprinted-text empty$
+      {bbl.reprint} {reprinted-text} if$
+     bbl.colon *}
+  if$
+}
+
+FUNCTION {format.journal}
+{
+  format.reprint
+  journal emphasize *
+}
+
+
+%generates the first label in \abntrefinfo to be used with \citeonline
+FUNCTION {format.names.for.label1} %abnt-alf only
+{ 's := "" 't :=
+   #1 'nameptr :=  s num.names$ 'numnames :=
+    numnames 'namesleft :=
+    { namesleft #0 > }
+    {abnt.last.names
+       {s nameptr "{ll}{ jj}" format.name$}
+       {s nameptr "{ll}" format.name$ #1 "{ll}" format.name$
+        s nameptr "{ jj}" format.name$ *}
+     if$
+     't :=
+      nameptr #1 >
+        {namesleft #1 >
+          { numnames abnt.etal.cite > abnt.etal.cite #0 = not and
+	    {#0 'namesleft := abnt.etal.cite {bbl.etal *} 'skip$ if$}
+	    {", " * t * } if$ }
+            { t "others" =
+              {abnt.etal.cite {bbl.etal *} 'skip$ if$}
+                {numnames nameptr =
+                {bbl.and * t *}
+		'skip$ if$}
+             if$
+	     }
+          if$ }
+        't
+      if$
+      nameptr #1 + 'nameptr :=
+      namesleft #1 - 'namesleft := }
+  while$
+}
+
+%generates the second label in \abntrefinfo to be used with \cite
+FUNCTION {format.names.for.label2} %abnt-alf only
+{ 's := "" 't :=
+   #1 'nameptr :=  s num.names$ 'numnames :=
+    numnames 'namesleft :=
+    { namesleft #0 > }
+    {abnt.last.names
+       {s nameptr "{ll}{ jj}" format.name$}
+       {s nameptr "{ll}" format.name$ #1 "{ll}" format.name$
+        s nameptr "{ jj}" format.name$ *}
+     if$
+     abnt.cite.style #0 = {"u" change.case$} 'skip$ if$ 't :=
+      nameptr #1 >
+        {namesleft #1 >
+            { numnames abnt.etal.cite > 
+	      {#0 'namesleft := abnt.etal.cite {bbl.etal *} 'skip$ if$} 
+	      {"; " * t * } if$ }
+            { t "OTHERS" = t "others" = or
+	      {abnt.etal.cite {bbl.etal *} 'skip$ if$}
+	      {numnames nameptr = { bbl.semicolon * t *} 'skip$ if$}
+             if$
+	     }
+          if$ }
+        't
+      if$
+      nameptr #1 + 'nameptr :=
+      namesleft #1 - 'namesleft := }
+  while$
+}
+
+FUNCTION {format.title.for.label}
+{  's :=
+  #1 'title.pos :=   #1 'first.word :=
+  "" 't :=
+  {first.word}
+    {s title.pos #1 substring$ 'title.char :=
+        title.char "." = title.char ":" = or title.char ";" = or
+	title.char "," = or title.char " " = or s t = or
+       {#0 'first.word :=
+       title.pos #1 + 'title.pos :=}
+       {title.pos #1 + 'title.pos := t title.char * 't :=}
+     if$
+     }
+  while$
+s t = %title equals first word, dont use bbl.ldots
+  {t  "}{" * t
+  abnt.cite.style #0 = {"u" change.case$ * } 'skip$ if$}
+  {t bbl.ldots * "}{" * t
+  abnt.cite.style #0 = {"u" change.case$} 'skip$ if$ * bbl.ldots *}
+if$
+}
+
+%cvs keys have the general form $key: value $
+INTEGERS {key.pos value.pos}
+FUNCTION {extract.cvs.key} %we borrow the functionality of format.title.for.label
+{ 's := %holds the entire cvs string
+  #1 'key.pos :=
+  #0 'value.pos := %0= between first $ and :, 1=between : and second $, 2= at the end
+  "" 't := %holds the resulting value
+  {value.pos #0 = value.pos #1 = or}
+    { s key.pos #1 substring$ 'title.char :=
+      value.pos #0 =
+      { title.char ":" = {#1 'value.pos := key.pos #1 + 'key.pos :=} 'skip$ if$}
+      { title.char "$" =
+        {#2 'value.pos :=}
+        {t title.char * 't :=}
+	if$}
+     if$
+     key.pos #1 + 'key.pos :=
+     }
+  while$
+  t
+}
+
+%generates and extended label of type {Author}{AUTHOR}{YEAR}
+%for abnt.cite.style=1 they will be of type {Author}{Author}{YEAR}
+%final result is placed into variable label
+FUNCTION {calc.extended.label}
+{ "{"
+  author empty$ not
+    {author format.names.for.label1 * "}{" * author format.names.for.label2 *}
+    {editor empty$ not
+     {editor format.names.for.label1 * "}{" *  editor format.names.for.label2 *}
+     {org-short empty$ not
+      {org-short * "}{" * org-short "u" change.case$ *}
+      {organization empty$ not
+       {organization * "}{" * organization "u" change.case$ *}
+        {title empty$ not
+         {title format.title.for.label *}
+         {"nada}{NADA" *}
+       if$}
+      if$}
+     if$}
+    if$}
+   if$
+ "}{" *
+ year empty$ 'skip$ {year *} if$
+ 'label := %place the stack into label
+ % final } will be placed in reverse.pass
+}
+%generates and simple label of type "Author YEAR"
+%final result is placed onto the stack
+FUNCTION {calc.simple.label}
+{ author empty$ not
+    {author format.names.for.label1}
+    {editor empty$ not
+     {editor format.names.for.label1}
+     {organization empty$ not
+      {organization}
+      {title empty$ not
+       {title}
+       {""}
+      if$}
+     if$}
+    if$}
+   if$
+ year empty$ 'skip$ {" " * year *} if$
+}
+
+FUNCTION {output.bibitem}
+{ newline$
+  abnt.alf
+    {"\bibitem[" write$
+    calc.simple.label
+    write$ "]{"}
+    {"\bibitem{"}
+  if$
+  write$ cite$ write$ "}" write$ newline$
+  abnt.refinfo #1 = {"\abntrefinfo" write$ label write$ newline$} 'skip$ if$
+  "{" write$
+  "" before.all 'output.state :=
+}
+FUNCTION {output.hiddenbibitem}
+{ newline$
+  abnt.alf
+    {"\hiddenbibitem[" write$
+    calc.simple.label
+    write$ "]{"}
+    {"\bibitem{"}
+  if$
+  write$ cite$ write$ "}" write$ newline$
+  abnt.refinfo #1 = {"\abntrefinfo" write$ label write$ newline$} 'skip$ if$
+  "{" write$
+  "" before.all 'output.state :=
+}
+FUNCTION {fin.entry}
+{ add.period$ write$
+  reprinted-from empty$ 'skip$
+    {" " reprinted-text empty$
+      {bbl.reprint} {reprinted-text} if$ * bbl.colon *
+     "\abntreprintinfo{ " * reprinted-from * "}" * write$}
+    if$
+  abnt-note empty$ 'skip$
+    {"\footnote{" abnt-note * "}" * write$} if$
+  "}" write$
+  %newline$
+  write.entry.verbatim
+}
+
+FUNCTION { abnt.display.options}
+{ 's := 't :=
+  abnt.show.options #1 = % "warn"
+  {"opção " t * " passou para " * s * warning$ } 'skip$ if$
+
+  abnt.show.options #2 = % "list"
+  {"Op\c c\~ao selecionada {\tt " t * "=}\verb+" * s * "+" * output new.sentence } 'skip$ if$
+}
+
+FUNCTION { abnt-options1 }
+  {
+    abnt-show-options empty$
+    'skip$
+      {abnt-show-options "no" =
+        {#0} {abnt-show-options "warn" =
+           {#1} {abnt-show-options "list" =
+             {#2 } {#0 } if$} if$} if$
+      'abnt.show.options :=} % #0 "no"; #1 "warn"; #2 "list"
+    if$
+
+    abnt.show.options #2 =
+    {output.bibitem "Mudan\c ca de estilo ap\'os este ponto com o comando \verb!\citeoption{"
+    cite$ * "}! " *
+    output new.sentence} 'skip$ if$
+
+    abnt-show-options empty$
+    'skip$ {"abnt-show-options" abnt-show-options abnt.display.options} if$
+
+    abnt-cite-style empty$
+      'skip$
+      {abnt-cite-style "(AUTHOR, YEAR)" =
+        {#0 'abnt.cite.style :=}
+	{abnt-cite-style "(Author, YEAR)" =
+	  {#1 'abnt.cite.style :=}
+	  {"opção " abnt-cite-style * " desconhecida" * warning$}
+	 if$}
+        if$
+       "abnt-cite-style" abnt-cite-style abnt.display.options}if$
+
+    abnt-experimental empty$
+    'skip$ {abnt-experimental "yes" = 'abnt.experimental :=
+    "abnt-experimental" abnt-experimental abnt.display.options} if$
+
+    abnt-emphasize duplicate$ empty$
+    'pop$ {'abnt.emphasize :=
+    "abnt-emphasize" abnt.emphasize abnt.display.options
+    abnt-emphasize "\bf" = abnt-emphasize "\it" = or abnt-emphasize "\em" = or
+    abnt-emphasize "\bfseries" = or
+      {"não use " abnt-emphasize * " para abnt-emphasize em " * cite$ *
+      ", isto alterará TODO o texto. Use \textbf ou \emph. Veja a documentação abnt-bibtex-doc para mais detalhes." * warning$}
+    'skip$ if$
+    } if$
+
+    abnt-doi empty$
+      'skip$
+      {abnt-doi "expand" =
+        {abnt.doi.expand.to.url 'abnt.doi :=}
+	{abnt-doi "link" =
+	  {abnt.doi.link 'abnt.doi :=}
+	  {abnt-doi "doi" =
+	    {abnt.doi.leave.as.is 'abnt.doi :=}
+	    {"opção " abnt-doi * " desconhecida" * warning$}
+	   if$}
+	 if$}
+        if$
+       "abnt-doi" abnt-doi abnt.display.options}if$
+ }
+FUNCTION { abnt-options2 }
+  {
+    abnt-full-initials empty$
+    'skip$ {abnt-full-initials "yes" = 'abnt.full.initials :=
+    "abnt-full-initials" abnt-full-initials abnt.display.options} if$
+
+    abnt-last-names empty$
+      'skip$
+      {abnt-last-names "abnt" =   {#0}
+        {abnt-last-names "bibtex" = {#1} {#0} if$} if$
+       'abnt.last.names :=
+       "abnt-last-names" abnt-last-names abnt.display.options}
+    if$
+
+
+    abnt-ldots-type empty$
+      'skip$
+      {abnt-ldots-type "none" =   {#0}
+        {abnt-ldots-type "normal" = {#1}
+          {abnt-ldots-type "math" =   {#2}
+            {abnt-ldots-type "text" =   {#1} {#0}
+	    if$} if$} if$} if$
+       'abnt.ldots.type :=
+       "abnt-ldots-type" abnt-ldots-type abnt.display.options}
+    if$
+
+    abnt-missing-year empty$
+      'skip$
+      {abnt-missing-year "void" = {#0}
+	{abnt-missing-year "sd" = {#1} {#0} if$}
+       if$
+       'abnt.missing.year :=
+       "abnt-missing-year" abnt-missing-year abnt.display.options}
+    if$
+
+
+    abnt-and-type empty$
+    'skip$ {abnt-and-type "e" =
+              {#0} {abnt-and-type "&" =
+                {#1} {#0} if$} if$
+            'abnt.and.type :=
+      "abnt-and-type" abnt-and-type abnt.display.options}
+    if$
+    
+    abnt-thesis-year empty$
+    'skip$ {abnt-thesis-year "final" =
+              {#0} {abnt-thesis-year "title" =
+                {#1} {abnt-thesis-year "both" =
+                  {#2} {#0} if$} if$} if$
+            'abnt.thesis.year :=
+      "abnt-thesis-year" abnt-thesis-year abnt.display.options}
+    if$
+
+    abnt-refinfo empty$
+    'skip$ {abnt-refinfo "yes" = 'abnt.refinfo :=
+    "abnt-refinfo" abnt-refinfo abnt.display.options} if$
+}
+FUNCTION { abnt-options3 }
+  {
+
+    abnt-dont-use-etal empty$
+    'skip$ {abnt-dont-use-etal "yes" = {#0 'abnt.etal.list :=} 'skip$ if$
+    "Uso da opção abnt-dont-use-etal se tornou obsoleto, usamos abnt-etal-list." warning$
+    "abnt-etal-list" abnt.etal.list int.to.str$ abnt.display.options} if$
+
+    abnt-etal-cite empty$
+    'skip$ {abnt-etal-cite str.to.int 'abnt.etal.cite :=
+    "abnt-etal-cite" abnt.etal.cite int.to.str$ abnt.display.options} if$
+
+    abnt-etal-list empty$
+    'skip$ {abnt-etal-list str.to.int 'abnt.etal.list :=
+    "abnt-etal-list" abnt.etal.list int.to.str$ abnt.display.options} if$
+
+    abnt-etal-text missing$
+    'skip$ {abnt-etal-text  'abnt.etal.text :=
+    "abnt-etal-text" abnt.etal.text abnt.display.options} if$
+
+    abnt-no-etal-label empty$
+    'skip$ {abnt-no-etal-label "yes" = {#0 'abnt.etal.cite :=} 'skip$ if$
+    "Uso da opção abnt-no-etal-label se tornou obsoleto, usamos abnt-etal-cite." warning$
+    "abnt-etal-cite" abnt.etal.cite int.to.str$ abnt.display.options} if$
+
+    abnt-repeated-author-omit empty$
+    'skip$ {abnt-repeated-author-omit "yes" =
+            {#1 'abnt.repeated.author.omit :=}
+	    {#0 'abnt.repeated.author.omit := "" 'previous.author :=} if$
+    "abnt-repeated-author-omit" abnt-repeated-author-omit abnt.display.options} if$
+
+    abnt-repeated-title-omit empty$ 'skip$
+      {abnt-repeated-title-omit "yes" =
+        {#1 'abnt.repeated.title.omit :=}
+	{#0 'abnt.repeated.title.omit := "" 'previous.title :=} if$
+        "abnt-repeated-title-omit" abnt-repeated-title-omit abnt.display.options
+        abnt.repeated.author.omit not abnt.repeated.title.omit and
+          {"Use abnt-repeated-title-omit=yes junto com abnt-repeated-author-omit=yes"
+          warning$} 'skip$ if$} if$
+
+    abnt-title-command empty$
+    'skip$ {abnt-title-command "yes" =
+            {#1 'abnt.title.command :=}
+	    {#0 'abnt.title.command :=} if$
+    "abnt-title-command" abnt-title-command abnt.display.options} if$
+
+    abnt-url-package empty$ 'skip$
+      {abnt-url-package "url" =
+         {#1 'abnt.url.package :=}
+         {abnt-url-package "hyperref" = {#2 'abnt.url.package :=} 'skip$ if$}
+       if$
+       "abnt-url-package" abnt-url-package abnt.display.options}
+     if$
+
+    abnt-verbatim-entry empty$
+    'skip$ {abnt-verbatim-entry "yes" = 'abnt.verbatim.entry :=
+    "abnt-verbatim-entry" abnt-verbatim-entry abnt.display.options} if$
+  
+  abnt.show.options #2 = 'fin.entry  'skip$ if$
+  }
+
+%we had to break this function in two parts because of the following message:
+%Sorry---you've exceeded BibTeX's single function space 100
+%(That was a fatal error)
+FUNCTION { iso-options1 }
+  {
+  iso-abbreviation empty$
+    'skip$ {iso-abbreviation "standard" = 'iso.abbreviation :=
+    "iso-abbreviation" iso-abbreviation abnt.display.options} if$
+  iso-author-punctuation empty$
+    'skip$ {iso-author-punctuation "void" = 'iso.author.punctuation :=
+    "iso-author-punctuation" iso-author-punctuation abnt.display.options} if$
+  iso-date-place empty$
+    'skip$ {iso-date-place "ISO" = 'iso.date.place :=
+    "iso-date-place" iso-date-place abnt.display.options} if$
+  }
+
+FUNCTION { abnt-options }
+  {
+  abnt-options1
+  abnt-options2
+  abnt-options3
+  iso-options1
+  }
+
+FUNCTION { iso-options } { abnt-options }
+
+FUNCTION { iso.year.label }
+{  iso.date.place
+     { abnt.alf
+         {year.label output new.sentence}
+	 'skip$ if$}
+    'skip$ if$}
+
+FUNCTION { iso.date }
+{  iso.date.place
+     { abnt.alf
+	 'skip$ 
+          {year output new.sentence}
+	 if$}
+    'skip$ if$}
+
+FUNCTION { non.iso.date }
+  {iso.date.place  'skip$ {format.date output} if$}
+
+FUNCTION {article}
+{ output.bibitem
+  format.author.or.organization  new.sentence
+  iso.year.label
+  format.title "title" output.check new.block
+  format.journal output
+  iso.date.place {format.year output} 'skip$ if$
+  %iso.date.place {format.date output} 'skip$ if$
+  %iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+  %               {format.year output new.sentence} if$
+  section "section" bibinfo.check output.dash
+  publisher "publisher" bibinfo.check output
+  address "address" bibinfo.check output
+  format.volume output
+  format.number output
+  format.pages output
+  non.iso.date
+  format.issn output new.block
+  format.note output new.block
+  format.url
+  fin.entry
+}
+FUNCTION {book}
+{ output.bibitem
+  format.author.or.editor.or.organization new.sentence
+  iso.year.label
+  format.type output new.sentence
+  format.btitle "title" output.check new.sentence
+  format.furtherresp new.sentence
+  format.edition output new.sentence
+  format.publisher.address output
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.volume output new.sentence
+  format.book.pages output
+  format.illustrated
+  format.dimensions  new.sentence
+  format.howpublished output  new.sentence
+  format.volume.number.series output new.sentence
+  format.note output
+  format.issn output %pode parecer curioso, mas revistas inteiras são tratadas como livro
+  format.isbn output new.sentence
+  format.url
+  fin.entry
+}
+FUNCTION {booklet}
+{ output.bibitem
+  format.author.or.editor.or.organization new.sentence
+  iso.year.label
+  format.type output new.sentence
+  format.btitle "title" output.check new.sentence
+  format.edition output new.sentence
+  address "address" bibinfo.check output
+  format.bvolume output
+  %format.date output  new.sentence
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.book.pages output new.sentence
+  format.volume.number.series output new.sentence
+  format.note output
+  format.isbn output new.sentence
+  format.url
+  fin.entry
+}
+
+FUNCTION {hidden}
+{ output.hiddenbibitem
+  fin.entry}
+
+FUNCTION {inbook}
+{ output.bibitem
+  format.author.or.organization new.sentence
+  iso.year.label
+  format.title "title" output.check new.block
+  format.in.ed.booktitle
+  format.furtherresp new.sentence
+  format.edition output new.sentence
+  format.publisher.address output
+  %format.year output new.sentence
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.bvolume.if.no.series output
+  format.volume.number.series output
+  format.chapter.pages output new.sentence
+  format.isbn output new.block
+  format.note output new.block
+  format.url
+  fin.entry
+}
+
+FUNCTION {incollection}
+{ output.bibitem
+  format.author.or.organization new.sentence
+  iso.year.label
+  format.title "title" output.check new.sentence
+  format.in.ed.booktitle
+  format.edition output new.sentence
+  format.publisher.address output
+  %format.year output
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output} if$
+  format.volume.number.series output new.sentence
+  format.bvolume.if.no.series output
+  format.chapter.pages output new.sentence
+  format.isbn output new.block
+  format.note output new.block
+  format.url
+  fin.entry
+}
+FUNCTION {inproceedings}
+{ output.bibitem
+  format.author.or.organization new.sentence
+  iso.year.label
+  format.title "title" output.check  new.sentence
+  format.in.ed.booktitle
+  format.publisher.address output
+  %format.year output new.sentence
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.bvolume.if.no.series output
+  format.volume.number.series output
+  format.pages output
+  format.isbn output
+  format.issn output new.sentence
+  format.note output new.sentence
+  format.url
+  fin.entry
+}
+FUNCTION {journalpart}
+{ output.bibitem
+  format.author.or.editor.or.organization new.sentence
+  iso.year.label
+  format.type output new.sentence
+  format.btitle "title" output.check new.sentence
+  format.furtherresp new.sentence
+  format.edition output new.sentence
+  format.publisher.address output
+  format.volume output
+  format.number output
+  %format.date output new.sentence
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.date output new.sentence} if$
+  format.book.pages output
+  format.illustrated
+  format.dimensions  new.sentence
+  format.note output
+  format.issn output %pode parecer curioso, mas revistas inteiras são tratadas como livro
+  format.isbn output new.sentence
+  format.url
+  fin.entry
+}
+FUNCTION {conference} { inproceedings }
+FUNCTION {manual}
+{ output.bibitem
+  format.author.or.editor.or.organization new.sentence
+  iso.year.label
+  format.btitle "title" output.check new.block
+  format.furtherresp new.sentence
+  format.edition output new.sentence
+  format.address output
+  %format.date output new.sentence
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.bvolume.if.no.series output
+  format.book.pages output new.sentence
+  format.volume.number.series output new.sentence
+  format.note output new.sentence
+  format.url
+  fin.entry
+}
+
+FUNCTION {misc}
+{ output.bibitem
+  format.author.or.editor.or.organization new.sentence
+  iso.year.label
+  format.type output
+  format.btitle output new.sentence
+  format.furtherresp new.sentence
+  format.publisher.address.relax output
+  %format.date output  new.block
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.book.pages output new.sentence
+  format.illustrated
+  format.dimensions  new.sentence
+  format.howpublished output  new.block
+  format.volume.number.series output new.sentence
+  format.note output  new.block
+  format.url
+  fin.entry
+  empty.misc.check
+}
+
+FUNCTION {patent}
+{ output.bibitem
+  format.editor.or.organization new.sentence
+  iso.year.label
+  format.authors.plain  output new.sentence
+  format.btitle output new.sentence
+  format.furtherresp new.sentence
+  %format.date output  new.block
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.patent.number output
+  format.howpublished output  new.block
+  format.note output  new.block
+  format.url
+  fin.entry
+  empty.misc.check
+}
+
+FUNCTION {format.thesis.type}
+{ type$ "phdthesis" =
+    {bbl.phdthesis}
+    {type$ "mastersthesis" =
+       {bbl.mthesis}
+       {type$ "monography" =
+          {bbl.monography}
+	  {bbl.void}
+        if$}
+     if$}
+  if$
+  type empty$
+    {type missing$
+       {type$ "phdthesis" =
+          { " (" bbl.phd * ")" *}
+          {type$ "mastersthesis" = { " (" bbl.master * ")" *} {pop$ ""} if$}
+        if$}
+       {""}
+     if$}
+     {type$ "thesis" =
+       {type}
+       {" (" type  * ")" * "type" bibinfo.check}
+      if$}
+  if$
+ * %joins first and second part of this function
+}
+FUNCTION {thesis}
+{ output.bibitem
+  format.authors "author" output.check new.block
+  iso.year.label
+  format.btitle "title" output.check new.block
+  abnt.thesis.year #1 = abnt.thesis.year #2 = or
+    {format.date "year" output.check new.sentence} 'skip$ if$
+  format.year.presented output new.sentence
+  format.book.pages output new.sentence
+  format.thesis.type output.nonnull
+  school "school" bibinfo.warn output.dash
+  address "address" bibinfo.check output
+  abnt.thesis.year #0 = abnt.thesis.year #2 = or
+    {format.date "year" output.check new.sentence} 'skip$ if$
+  format.note output new.block
+  format.url
+  fin.entry
+}
+
+FUNCTION {phdthesis}     { thesis }
+FUNCTION {mastersthesis} { thesis }
+FUNCTION {monography}    { thesis }
+
+FUNCTION {proceedings}
+{ output.bibitem
+  iso.year.label
+  format.editor.or.organization
+  format.conference.info
+  format.btitle "title" output.check
+  format.bvolume output
+  format.volume.number.series output
+  editor empty$
+    { publisher empty$
+        'skip$
+        { new.sentence format.publisher.address output format.year output}
+      if$
+    }
+    { publisher empty$
+        { new.sentence
+          format.organization.address output format.year output}
+        { new.sentence
+          organization "organization" bibinfo.check output
+          format.publisher.address output format.year output}
+      if$ }
+  if$
+  new.sentence format.book.pages output new.sentence
+  format.isbn output
+  format.issn output  new.block
+  format.note output  new.block
+  format.url
+  fin.entry
+}
+
+FUNCTION {techreport} {manual}
+
+FUNCTION {unpublished}
+{ output.bibitem
+  format.author.or.editor.or.organization new.sentence
+  iso.year.label
+  format.title "title" output.check  new.sentence
+  format.note "note" output.check  new.sentence
+  %format.date output new.sentence
+  iso.date.place {abnt.alf 'skip$ {format.year output new.sentence} if$}
+                 {format.year output new.sentence} if$
+  format.url
+  fin.entry
+}
+
+FUNCTION {default.type} { misc }
+READ
+FUNCTION {sortify}
+{ purify$
+  "l" change.case$
+}
+INTEGERS { len }
+FUNCTION {chop.word}
+{ 's :=
+  'len :=
+  s #1 len substring$ =
+    { s len #1 + global.max$ substring$ }
+    's
+  if$
+}
+FUNCTION {sort.format.names}
+{ 's :=
+  #1 'nameptr :=
+  ""
+  s num.names$ 'numnames :=
+  numnames 'namesleft :=
+    { namesleft #0 > }
+    { format.single.name 't :=
+      nameptr #1 >
+        {
+          nameptr #3
+          #1 + =
+          numnames #3
+          > and
+            { "others" 't :=
+              #1 'namesleft := }
+            'skip$
+          if$
+          "   "  *
+          namesleft #1 = t "others" = and
+            { "zzzzz" * }
+            { t sortify * }
+          if$
+        }
+        { t sortify * }
+      if$
+      nameptr #1 + 'nameptr :=
+      namesleft #1 - 'namesleft :=
+    }
+  while$
+}
+
+FUNCTION {sort.format.title}
+{ 't :=
+  "A " #2
+    "An " #3
+      "The " #4 t chop.word
+    chop.word
+  chop.word
+  sortify
+  #1 global.max$ substring$
+}
+FUNCTION {any.sort}
+{ author empty$
+  { organization empty$
+    { editor empty$
+      { title empty$
+        { key empty$
+          { "para ordenar, precisa dos campos author, organization, editor, title ou key in " cite$ * warning$ ""}
+          { key sortify }
+        if$}
+        { title sortify}
+      if$}
+      { editor sort.format.names }
+    if$}
+    { organization sortify }
+  if$}
+  { author sort.format.names }
+if$
+}
+
+FUNCTION {presort}
+{ 
+ any.sort
+  "    " * year field.or.null sortify * "    " * title field.or.null
+  sort.format.title * #1 entry.max$ substring$
+  %for non-alpha style we drop a void sort.key such that SORT has no effect
+  abnt.alf 'skip$ {pop$ ""} if$ 'sort.key$ :=
+  year empty$ {""} {year} if$ 'year.label :=
+  calc.extended.label
+}
+
+FUNCTION {set.default.abnt.variables}
+{ %if you change abnt-num to abnt-alf by hand you need also to change
+  %the name of RCSfile by hand, otherwise cvs takes care of it.
+  %
+  "$RCSfile: abnt-num.bst,v $ " extract.cvs.key
+  %
+  "abnt-alf.bst,v " = 'abnt.alf := % #1 para abnt-alf #0 para abnt-num
+  "$Revision: v-1.9.7 $" extract.cvs.key 'abnt.bst.revision :=
+  #0 'abnt.and.type     :=     % #0 "e"; #1 "&"
+  "\emph" 'abnt.emphasize :=
+  #0 'abnt.cite.style :=       %default norm version for NBR10520
+                               %#0 \cite=(AUTHOR, YEAR)
+			       %#1 \cite=(Author, YEAR)
+  #0 'abnt.experimental :=
+  abnt.doi.expand.to.url 'abnt.doi :=
+  #3 'abnt.etal.cite :=
+  #3 'abnt.etal.list :=
+  "et al." 'abnt.etal.text :=
+  #0 'abnt.full.initials :=
+  #0 'abnt.last.names :=      %#0 abnt-style, #1 bibtex-style
+  #1 'abnt.ldots.type :=      %#0 use nothing, #1 use \ldots, #2 use $\ldots$, 3# use {...}
+  #0 'abnt.missing.year :=    %#0 "void"; #1 "[s.d.]"
+  #0 'repeated.author :=
+  #0 'abnt.repeated.author.omit :=
+  #0 'abnt.repeated.title.omit :=
+  #1 'abnt.refinfo :=
+  #0 'abnt.show.options :=    % #0 "no"; #1 "warn"; #2 "list"
+  #0 'abnt.thesis.year :=     % #0 "final"; #1 "title"; #2 "both"
+  #0 'abnt.title.command :=   % #0 "no"; #1 "yes"
+  #0 'abnt.url.package :=     % #0 "none"'; #2 "url"; #2 "hyperref"
+  #0 'abnt.verbatim.entry :=
+}
+FUNCTION {set.default.iso.variables}
+{ #0 'iso.abbreviation := % #0 ABNT-style; #1 ISO-style
+  #0 'iso.author.punctuation := % #0 ABNT (Smith, A. B.); #1 ISO (Smith, AB)
+  #0 'iso.date.place := % #0 ABNT-sty; #1 ISO-style
+}
+EXECUTE {set.default.abnt.variables}
+EXECUTE {set.default.iso.variables}
+FUNCTION {process.early.abnt.options}
+{%here we intercept all entries which need priority handling
+ %note: we cannot use type$ at this point
+ abnt-and-type missing$
+ abnt-experimental missing$ and
+ abnt-etal-cite missing$ and
+ abnt-etal-text missing$ and
+ abnt-ldots-type missing$ and
+ abnt-cite-style missing$ and
+ abnt-no-etal-label missing$ and
+ abnt-title-command missing$ and
+ 'skip$ {call.type$} if$
+}
+ITERATE {process.early.abnt.options}
+FUNCTION {search.reprinted}
+{  reprinted-from missing$ 'skip$
+  {"\nocite{" reprinted-from * "}" * write$ newline$
+  }
+  if$
+}
+ITERATE {search.reprinted}
+FUNCTION {abntreprintinfo}
+{"\providecommand{\abntreprintinfo}[1]{%" write$ newline$
+ " \citeonline{#1}}" write$ newline$}
+EXECUTE {abntreprintinfo}
+ITERATE {presort}
+SORT
+STRINGS { last.label next.extra}
+INTEGERS { last.extra.num }
+FUNCTION {forward.pass}
+{ last.label label =
+    { last.extra.num #1 + 'last.extra.num :=
+      last.extra.num int.to.chr$ 'extra.label :=
+    }
+    { "a" chr.to.int$ 'last.extra.num :=
+      "" 'extra.label :=
+      label 'last.label :=
+    }
+  if$
+}
+
+FUNCTION {reverse.pass}
+{ next.extra "b" =
+    { "a" 'extra.label := }
+    'skip$
+  if$
+  label extra.label * 'label :=
+  year.label extra.label * 'year.label :=
+  extra.label 'next.extra :=
+  label "}" * 'label :=
+}
+ITERATE {forward.pass}
+REVERSE {reverse.pass}
+FUNCTION {begin.bib}
+{
+  abnt.alf
+    {"\setlength{\labelsep}{0pt}" write$}
+    'skip$
+  if$
+  "\begin{thebibliography}{}" write$ newline$
+  preamble$ empty$
+    'skip$
+    { preamble$ write$ newline$ }
+  if$
+  abnt.refinfo #1 =
+  {"\providecommand{\abntrefinfo}[3]{}" write$ newline$}
+  'skip$ if$
+  "\providecommand{\abntbstabout}[1]{}" write$ newline$
+  abnt.title.command
+    {"\providecommand{\bibtextitlecommand}[2]{#2}" write$ newline$}
+    'skip$ if$
+  "\abntbstabout{" abnt.bst.revision * "}" * write$ newline$
+  %Se você não usa abntcite e precisa que a margem direita não
+  %seja justificada, descomente a linha seguinte
+  %alternativamente coloque \bibliography{abnt-nrj,...
+%  "\setlength{\rightskip}{0pt plus 2cm}" write$ newline$
+}
+EXECUTE {begin.bib}
+EXECUTE {init.state.consts}
+FUNCTION {process.entry}{call.type$}
+ITERATE {process.entry}
+FUNCTION {end.bib}
+{ newline$ "\end{thebibliography}" write$ newline$
+}
+EXECUTE {end.bib}
+FUNCTION {apresentacao}
+{ "+---------------------------------------------------------+"
+  "| http://www.abntex.net.br/                               |"
+  "| Em caso de dúvidas ou problemas com este estilo procure |"
+  abnt.alf
+ {"| Estilo bibliográfico abntex2-alf.bst versão " abnt.bst.revision * "          |" *}
+ {"| Estilo bibliográfico abntex2-num.bst versão " abnt.bst.revision * "          |" *}
+ if$
+  "+---------------------------------------------------------+"
+  stack$
+}
+EXECUTE{apresentacao}