@misc{JSFS_1870__11__221_0,
     title = {Les for\^ets en {France}},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {221--229},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {11},
     year = {1870},
     language = {fr},
     url = {http://archive.numdam.org/item/JSFS_1870__11__221_0/}
}