@article{BSMF_1894__22__230_0,
     author = {Cartan, E.},
     title = {Sur un th\'eor\`eme de {M.} {Bertrand}},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {230--234},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {22},
     year = {1894},
     doi = {10.24033/bsmf.502},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.502/}
}