@article{JMPA_1932_9_11__333_0,
     author = {Denjoy, Arnaud},
     title = {Sur les courbes d\'efinies par les \'equations diff\'erentielles \`a la surface du tore},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {333--375},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 11},
     year = {1932},
     zbl = {0006.30501},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1932_9_11__333_0/}
}