@article{MAN_1907__63_158301,
     author = {Erich Mosch},
     title = {\"Uber {Fl\"achenscharen,} deren orthogonale {Trajektorien} ebene {Kurven} sind},
     journal = {Mathematische Annalen},
     pages = {573--590},
     publisher = {mathdoc},
     volume = {63},
     year = {1907},
     zbl = {38.0640.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1907__63_158301/}
}