@article{BSMF_1910__38__4_1,
     author = {Cotton, E.},
     title = {Extrait d'une lettre},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {4--4},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {38},
     year = {1910},
     doi = {10.24033/bsmf.852},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.852/}
}