@article{JSFS_1980__121_2_62_0,
     author = {Gibrat, Robert},
     title = {La pr\'evision \'economique \`a long terme},
     journal = {Journal de la soci\'et\'e fran\c{c}aise de statistique},
     pages = {62--66},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {121},
     number = {2},
     year = {1980},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/JSFS_1980__121_2_62_0/}
}