@article{JMPA_1880_3_6__235_0,
     author = {M\'eray, Ch.},
     title = {D\'emonstration g\'en\'erale de l'existence des int\'egrales des \'equations aux d\'eriv\'ees partielles},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {235--266},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 6},
     year = {1880},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1880_3_6__235_0/}
}