\documentclass[a4paper,12pt]{these}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{amsmath,amssymb}
\usepackage{french}
%\usepackage[all,dvips]{xy}

\let\wt\widetilde
\let\wh\widehat
\def\et{_{\text{\textrm{ét}}}}
\DeclareMathOperator{\out}{Out}
\DeclareMathOperator{\inn}{Inn}
\def\an{^{\text{\textrm{an}}}}

\usepackage[a4paper,left=2cm,right=2cm,top=1.5cm,bottom=1.5cm,nohead]{geometry}
\usepackage{fancyhdr}
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\renewcommand{\footrulewidth}{0pt}
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\fancyfoot[CE,CO]{\textbf{\thepage}}

\begin{document}
D'après \cite{edidin:Mgn}, \cite{edidin:QS} et \cite{oda}...
\input{2.bbl}
\end{document}
