@incollection{XUPS_1994____93_0, author = {Le Calvez, Patrice}, title = {Du billard convexe aux~g\'eod\'esiques~du~tore}, booktitle = {Aspects des syst\`emes dynamiques (des \'equations diff\'erentielles aux it\'erations de fonctions)}, series = {Journ\'ees math\'ematiques X-UPS}, pages = {93--140}, publisher = {Les \'Editions de l{\textquoteright}\'Ecole polytechnique}, year = {1994}, doi = {10.5802/xups.1994-04}, language = {fr}, url = {http://archive.numdam.org/articles/10.5802/xups.1994-04/} }