@article{JSFS_1864__5__322_0,
     author = {JSFS},
     title = {Vari\'et\'es},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {322--332},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {5},
     year = {1864},
     language = {fr},
     url = {http://www.numdam.org/item/JSFS_1864__5__322_0/}
}