@article{JSFS_1877__18__199_0,
     author = {Bertillon},
     title = {\'Etudes nouvelles sur la population},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {199--209},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {18},
     year = {1877},
     language = {fr},
     url = {http://archive.numdam.org/item/JSFS_1877__18__199_0/}
}