@article{JMPA_1844_1_9__350_0,
     author = {Liouville, J.},
     title = {Sur une propri\'et\'e des sections coniques},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {350--352},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 9},
     year = {1844},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1844_1_9__350_0/}
}