@article{MZ_1939__45_168875,
     author = {G., Paetz},
     title = {Differentialgeometrie der {Kugelkomplexe}},
     journal = {Mathematische Zeitschrift},
     pages = {669--705},
     publisher = {mathdoc},
     volume = {45},
     year = {1939},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1939__45_168875/}
}