@article{CMUC_1960__1_3_a4,
     author = {\v{S}vec, Alois},
     title = {Sur la diff\'erentiabilit\'e du rep\'ere de {Winternitz} d'une courbe},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {31--34},
     publisher = {mathdoc},
     volume = {01},
     number = {3},
     year = {1960},
     zbl = {0100.17401},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1960__1_3_a4/}
}