@article{JSFS_1941__82__232_0,
     author = {Landry, A.},
     title = {Familles sans enfant},
     journal = {Journal de la soci\'et\'e fran\c{c}aise de statistique},
     pages = {232--233},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {82},
     year = {1941},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/JSFS_1941__82__232_0/}
}