\documentclass{report}
\usepackage{epsf}
\usepackage{times}
\usepackage{epsfig}
\usepackage{pstricks}
\usepackage[round]{natbib}
\usepackage{hyperref}
\usepackage{makeidx}
\usepackage{a4}
\usepackage{graphicx}
\usepackage[french,english]{babel}
\scrollmode

\makeindex
\sloppy

% numero de la derniere section numerotee
\setcounter{secnumdepth}{3}
% numero de la derniere section a apparaitre dans la table des matieres
\setcounter{tocdepth}{3}
 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}

\input{def}

\sloppy

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\selectlanguage{english}

%\pagedegarde{User Manual for the LMD Martian Atmospheric General Circulation Model }{Ehouarn MILLOUR, Fran\c{c}ois FORGET  \\ \it{Contributors to earlier versions}: Karine Dassas, \\ Christophe HOURDIN, Fr\'ed\'eric HOURDIN, \\  and Yann WANHERDRICK\\
%\it{initial version translated by Gwen Davis}}{}
%\def\contracr{ESA contract}
% For title page
\title{User Manual for the LMD Martian Atmospheric General Circulation Model}
\author{Ehouarn MILLOUR, Fran\c{c}ois FORGET  \\ \it{Contributors to earlier versions}: Karine DASSAS, \\ Christophe HOURDIN, Fr\'ed\'eric HOURDIN, \\  and Yann WANHERDRICK}
%\date{\today}
\date{October 18, 2021}

\maketitle
\tableofcontents

\input{intro}
\input{principe}
%\input{dynamics}
\input{phymars}
\input{run.tex}
\input{compilation.tex}
\input{io.tex}
\input{zoom.tex}
\input{water.tex}
\input{photochem.tex}
\input{thermosphere.tex}
\input{testphys1d.tex}

\appendix

\input{sol2ls.tex}
\input{utilities.tex}
 
%\printindex

\bibliography{biblio.bib}
\bibliographystyle{plain}

\end{document}