@article{JMPA_1925_9_4__193_0,
     author = {Tz\'enoff, Iv.},
     title = {Sur le mouvement des syst\`emes non holonomes},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {193--207},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 4},
     year = {1925},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1925_9_4__193_0/}
}