@article{RSA_1956__4_2_9_0, author = {Gibrat, M.}, title = {Allocution de {M.} {Gibrat}}, journal = {Revue de Statistique Appliqu\'ee}, pages = {9--12}, publisher = {Soci\'et\'e de Statistique de France}, volume = {4}, number = {2}, year = {1956}, language = {fr}, url = {http://www.numdam.org/item/RSA_1956__4_2_9_0/} }