@article{JSFS_1874__15__64_0,
     author = {Lucas},
     title = {Statistique des voies de communication},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {64--69},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {15},
     year = {1874},
     language = {fr},
     url = {http://archive.numdam.org/item/JSFS_1874__15__64_0/}
}