@article{JSFS_1866__7__230_0, author = {JSFS}, title = {Vari\'et\'es}, journal = {Journal de la Soci\'et\'e de statistique de Paris}, pages = {230--240}, publisher = {Soci\'et\'e de statistique de Paris}, volume = {7}, year = {1866}, language = {fr}, url = {http://www.numdam.org/item/JSFS_1866__7__230_0/} }