\documentclass[french]{nwejmart}
\usepackage{lipsum}
\addbibresource{biblatex-examples.bib}
\input{sample}
%
\begin{document}
\nocite{*}
%
\title{Titre de l'article (french)}
\author[affiliation={Affiliation 1}]{Last1, First1}
\author[affiliation=[aff2]{Affiliation 2}]{Last2, First2}
\author[affiliation={Affiliation 3},affiliation={Affiliation 3 bis}]{Last3, First3}
\author[affiliation={Affiliation 4},affiliationtagged={aff2}]{Last4, First4}
%
\sample{%
  \begin{enumerate}
  \item It\footnote{Foo bar.} is well known\autocite{baez/article}
    that... Moreover, it is well known\autocite{companion} that...
  \item \textcite{baez/article} have proved... Moreover, \textcite{companion}
    have proved...
  \end{enumerate}
}
\end{document}

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