@article{MAN_1886__27_157204,
     author = {Study},
     title = {Ueber die {Geometrie} der {Kegelschnitte,} insbesondere deren {Charakteristikenproblem}},
     journal = {Mathematische Annalen},
     pages = {58--101},
     publisher = {mathdoc},
     volume = {27},
     year = {1886},
     zbl = {18.0629.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1886__27_157204/}
}