@article{JSFS_1878__19__253_0,
     author = {Loua, T.},
     title = {Les profits que l'\'etat retire des chemins de fer},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {253--255},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {19},
     year = {1878},
     language = {fr},
     url = {http://www.numdam.org/item/JSFS_1878__19__253_0/}
}