@article{JSFS_1938__79__302_0,
     author = {Courcon},
     title = {Comment pr\'evoir les cours du bl\'e ?},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {302--334},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {79},
     year = {1938},
     language = {fr},
     url = {http://archive.numdam.org/item/JSFS_1938__79__302_0/}
}