@article{JMPA_1893_4_9__273_0,
     author = {Picard, \'Emile},
     title = {De l'\'equation $\Delta u =ke^u$ sur une surface de {Riemann} ferm\'ee},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {273--291},
     publisher = {Gauthier-Villars},
     volume = {4e s{\'e}rie, 9},
     year = {1893},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1893_4_9__273_0/}
}