@article{BSMA_1871__2__125_0,
     author = {Mannheim, Am.},
     title = {D\'etermination simple et rapide d'une \'equation des surfaces du second ordre contenant six points donn\'es},
     journal = {Bulletin des Sciences Math\'ematiques et Astronomiques},
     pages = {125--127},
     publisher = {Gauthier-Villars},
     volume = {2},
     year = {1871},
     language = {fr},
     url = {http://www.numdam.org/item/BSMA_1871__2__125_0/}
}