@article{JMPA_1937_9_16_1-4_43_0,
     author = {Dubreil-Jacotin, M.-L.},
     title = {Sur les th\'eor\`emes d'existence relatifs aux ondes permanentes p\'eriodiques \`a deux dimensions dans les liquides h\'et\'erog\`enes},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {43--67},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 16},
     number = {1-4},
     year = {1937},
     zbl = {0016.05905},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1937_9_16_1-4_43_0/}
}