@article{JMPA_1897_5_3__331_0,
     author = {Hadamard},
     title = {Sur certaines propri\'et\'es des trajectoires en {Dynamique}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {331--387},
     publisher = {Gauthier-Villars},
     volume = {5e s{\'e}rie, 3},
     year = {1897},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1897_5_3__331_0/}
}