@article{MAN_1870__2_156463,
     author = {Rosanes},
     title = {Ueber {Dreiecke} in perspectivischer {Lage}},
     journal = {Mathematische Annalen},
     pages = {549--552},
     year = {1870},
     volume = {2},
     url = {http://geodesic.mathdoc.fr/item/MAN_1870__2_156463/}
}