@article{JSFS_1868__9__221_0,
     author = {Legoyt, A.},
     title = {Production et consommation des combustibles min\'eraux},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {221--229},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {9},
     year = {1868},
     language = {fr},
     url = {http://archive.numdam.org/item/JSFS_1868__9__221_0/}
}