@article{JRAM_1913__142_149396,
     author = {J. Rosanes},
     title = {Zur {Theorie} der {Kegelschnitte.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {271--277},
     publisher = {mathdoc},
     volume = {142},
     year = {1913},
     zbl = {44.0662.03},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1913__142_149396/}
}