@article{JMPA_1916_7_2__155_0,
     author = {Humbert, G.},
     title = {Remarques sur certaines suites d'approximation},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {155--167},
     publisher = {Gauthier-Villars},
     volume = {7e s{\'e}rie, 2},
     year = {1916},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1916_7_2__155_0/}
}