@article{JSFS_1921__62__4_0,
     author = {Michel, E.},
     title = {La valeur immobili\`ere des r\'egions lib\'er\'ees},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {4--20},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {62},
     year = {1921},
     language = {fr},
     url = {http://www.numdam.org/item/JSFS_1921__62__4_0/}
}