@article{JMPA_1882_3_8__173_0,
     author = {Appell},
     title = {Sur les fonctions hyperg\'eom\'etriques de deux variables},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {173--216},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 8},
     year = {1882},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1882_3_8__173_0/}
}