@article{MAN_1896__47_157802,
     author = {Robert Fricke},
     title = {Notiz \"uber die {Discontinuit\"at} gewisser {Collineationsgruppen}},
     journal = {Mathematische Annalen},
     pages = {557--563},
     publisher = {mathdoc},
     volume = {47},
     year = {1896},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1896__47_157802/}
}