@article{BSMF_1903__31__54_1,
     author = {Perrin, R.},
     title = {Sur quelques cons\'equences g\'eom\'etriques de l'\'equation diff\'erentielle des coniques},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {54--64},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {31},
     year = {1903},
     doi = {10.24033/bsmf.683},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.683/}
}