@article{MZ_1966__93_170599,
     author = {Rolf-Dieter W\"olk},
     title = {Topologische {M\"obiusebenen.}},
     journal = {Mathematische Zeitschrift},
     pages = {311--333},
     publisher = {mathdoc},
     volume = {93},
     year = {1966},
     zbl = {0143.44001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1966__93_170599/}
}