@article{MAN_1979__243_182819,
     author = {Friedrich Ischebeck},
     title = {\"Uber die {Abbildung} {Pic} {A} - {Pic} {Af..}},
     journal = {Mathematische Annalen},
     pages = {237--246},
     publisher = {mathdoc},
     volume = {243},
     year = {1979},
     zbl = {0418.14008},
     url = {http://geodesic.mathdoc.fr/item/MAN_1979__243_182819/}
}