\ml
{\def\back{Summaries}}
{\def\back{Résumés}}
\chapter*{}
\addcontentsline{toc}{chapter}{\back}

\begin{center}\begin{large}\textbf{
\titlelong\\
\titlesub
}\end{large}\end{center}

\typelong,\\
Bordeaux \dateshort.

\summaries

\thispagestyle{empty}

\pagebreak
