\begin{thebibliography}{}
\expandafter\ifx\csname fonteauteurs\endcsname\relax
\def\fonteauteurs{\scshape}\fi
\expandafter\ifx\csname url\endcsname\relax
  \def\url#1{{\tt #1}}%
    \message{You should include the url package}\fi

\bibitem[Buchs, 2011]{BD11}
\bgroup\fonteauteurs\bgroup Buchs\egroup\egroup{}, D. (2011).
\newblock Langages formels.

\bibitem[Desgraupes, 2008]{DB08}
\bgroup\fonteauteurs\bgroup Desgraupes\egroup\egroup{}, B. (2008).
\newblock {\em Expressions r{\'e}guli{\`e}res.}
\newblock Pearson.
\newblock Simple, clair et efficace. Mais peu théorique.

\bibitem[Gastin, 2009]{GP09}
\bgroup\fonteauteurs\bgroup Gastin\egroup\egroup{}, P. (2009).
\newblock Langages formels.

\bibitem[Hammel, 1994]{PP94}
\bgroup\fonteauteurs\bgroup Hammel\egroup\egroup{}, P. P.~M. (1994).
\newblock {\em Language-Restricted Iterated Function Systems, Koch
  Constructions, and L-systems}.
\newblock University of Calgary SIGGRAPH ’94 Course Notes. ACM Press.

\bibitem[Prusinkiewicz, 2004]{LA04}
\bgroup\fonteauteurs\bgroup Prusinkiewicz\egroup\egroup{}, A. L.~P. (2004).
\newblock {\em The Algorithmic Beauty of Plants.}
\newblock Springer-Verlag.
\newblock Ouvrage référence publié sur
  \url{http://algorithmicbotany.org/papers/}.

\bibitem[Renault, 2006]{CJ06}
\bgroup\fonteauteurs\bgroup Renault\egroup\egroup{}, J. C.~F. (2006).
\newblock {\em Interpr{\'e}tation graphique d’une grammaire L-System}.
\newblock Ecole Polytechnique de l’Universite de Tours.

\bibitem[Togni, 2007]{TO07}
\bgroup\fonteauteurs\bgroup Togni\egroup\egroup{}, O. (2007).
\newblock Langages et automates.

\end{thebibliography}