@article{JSFS_1920__61__228_0,
     author = {Friedel, Ch.},
     title = {Les allocations pour charges de famille},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {228--228},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {61},
     year = {1920},
     language = {fr},
     url = {http://archive.numdam.org/item/JSFS_1920__61__228_0/}
}