@article{JMPA_1879_3_5__5_0,
     author = {Mathieu, \'Emile},
     title = {\'Etude des solutions simples des \'equations aux diff\'erences partielles de la {Physique} math\'ematique},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {5--20},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 5},
     year = {1879},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1879_3_5__5_0/}
}