@article{CMH_1934__7_138629,
     author = {Werner Nowacki},
     title = {Die euklidischen, dreidimensionalen, geschlossenen und offenen {Raumformen.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {81--93},
     publisher = {mathdoc},
     volume = {7},
     year = {1934},
     zbl = {0010.37604},
     url = {http://geodesic.mathdoc.fr/item/CMH_1934__7_138629/}
}