\documentclass [12pt,twoside]{article}
\usepackage{a4}
\usepackage[english]{babel}
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage[latin1]{inputenc}
\usepackage{latexsym}
\usepackage{times}
\usepackage[active]{srcltx}
\setlength{\oddsidemargin}{-.2cm}
\setlength{\evensidemargin}{-.2cm} \setlength{\textwidth}{15cm}
\setlength{\topmargin}{0cm} \setlength{\textheight}{21cm}
\setlength{\hoffset}{1.2cm}
\parskip=6pt plus1pt minus1pt
\usepackage[dvips]{graphicx}
\usepackage{fancyhdr}
\fancyhf{}
\fancypagestyle{empty}{\fancyhf{}\renewcommand{\headrulewidth}{0pt}\fancyhead{}\fancyfoot[LE,RO]{\thepage{}}}

\fancyhf{} \fancyhead[LE]{\titre} \fancyhead[RO]{Annales du
LAMSADE n°3} \fancyfoot[LE,RO]{\thepage{}} \pagestyle{fancy}
\setcounter{page}{1}

\begin{document}
\thispagestyle{empty}

%%%%%%%%%% Define here authors, title and key words

\def\auteurs{Author 1$^*$,
Author 2$^\dag$, Author 3$^*$, Author4$^\ddag$}
\def\titre{Title}
\def\keywords{key word 1, key word 2, key word 3, ...}

\vspace*{2cm}

%%%%%%

\begin{center}
{\LARGE\bf \titre}\vskip 0.2 cm {\large \auteurs}
\end{center}

\renewcommand{\thefootnote}{\fnsymbol{footnote}}

%%%%%%%%%% Write here authors' adresses

\stepcounter{footnote} \footnotetext{LAMSADE, Universit\'e
Paris-Dauphine, Place du Mar\'echal de Lattre de Tassigny, 75775
Paris cedex 16, France.
{\tt\{author1,author3\}}{\tt@lamsade.dauphine.fr}}
\stepcounter{footnote} \footnotetext{CEREMADE, Universit\'e
Paris-Dauphine, Place du Mar\'echal de Lattre de Tassigny, 75775
Paris cedex 16, France.
{\tt\{author2\}}{\tt@ceremade.dauphine.fr}} \stepcounter{footnote}
\footnotetext{Laboratoire d'informatique de Paris VI, Universit\'e
Paris VI, 8 rue du capitaine Scott, 75015 Paris, France.
{\tt\{author4\}}{\tt@lip6.jussieu.fr}} \stepcounter{footnote}

\renewcommand{\thefootnote}{\arabic{footnote}} \addtocounter{footnote}{-2}

\vspace{0.1cm}

%%%%%%% Abstract

\begin{abstract}
Write abstract here
\end{abstract}

%%%%%%%%

\vskip 0.1 cm

\hspace{0.4cm}\parbox[]{13cm}{{\small {\bf Key words :}
{\keywords}}} \vskip 0.3cm


\section{First section}

...

\end{document}
