@article{BSMF_1873-1874__2__94_0,
     author = {Halphen, G.},
     title = {Sur un point de la th\'eorie du contact},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {94--96},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {2},
     year = {1873-1874},
     doi = {10.24033/bsmf.50},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.50/}
}