@article{MAN_1880__17_156908,
     author = {in Breslau. Rosanes},
     title = {Zur {Theorie} der {Kegelschnitte}},
     journal = {Mathematische Annalen},
     pages = {21--30},
     publisher = {mathdoc},
     volume = {17},
     year = {1880},
     url = {http://geodesic.mathdoc.fr/item/MAN_1880__17_156908/}
}