@article{JMPA_1883_3_9__65_0,
     author = {Resal, H.},
     title = {Commentaire \`a la th\'eorie math\'ematique du jeu de billard},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {65--98},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 9},
     year = {1883},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1883_3_9__65_0/}
}