@article{JMPA_1839_1_4__1_0,
     author = {Liouville, Joseph},
     title = {Sur l'int\'egration des \'equations lin\'eaires aux diff\'erentielles partielles},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {1--6},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 4},
     year = {1839},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1839_1_4__1_0/}
}