@article{BSMF_1880__8__27_1,
     author = {Lebon},
     title = {Sur l'ar\^ete de rebroussement d'une d\'eveloppable},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {27--30},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {8},
     year = {1880},
     doi = {10.24033/bsmf.180},
     mrnumber = {1503828},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.180/}
}