@article{BSMF_1934__62__265_0,
     author = {Mentr\'e, Paul},
     title = {\'Etude g\'eom\'etrique des caract\'eristiques},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {265--273},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {62},
     year = {1934},
     doi = {10.24033/bsmf.1224},
     zbl = {0010.27202},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1224/}
}