@article{MZ_1930__32_168244,
     author = {R., Furch},
     title = {Polyedrale {Gebilde} verschiedener {Metrik}},
     journal = {Mathematische Zeitschrift},
     pages = {512--544},
     year = {1930},
     volume = {32},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1930__32_168244/}
}