@article{JSFS_1861__2__277_0,
     author = {Guillard, Ach.},
     title = {D\'emographie (lois de population)},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {277--288},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {2},
     year = {1861},
     language = {fr},
     url = {http://www.numdam.org/item/JSFS_1861__2__277_0/}
}