@article{JMPA_1939_9_18__385_0,
     author = {Poncin, Henri},
     title = {Sur les \'equations du mouvement d'un milieu continu dans le cas de discontinuit\'es stationnaires relatives \`a la densit\'e},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {385--404},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 18},
     year = {1939},
     zbl = {0023.08002},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1939_9_18__385_0/}
}