@article{10_21136_CPM_1986_108158,
     author = {Van\v{c}ura, Zden\v{e}k},
     title = {Zur {Differentialgeometrie} der {Kugel-} und {Linienmannigfaltigkeiten} im dreidimensionalen {Euklidischen} {Raum}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {235--241},
     year = {1986},
     volume = {111},
     number = {3},
     doi = {10.21136/CPM.1986.108158},
     mrnumber = {853788},
     zbl = {0613.53004},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1986.108158/}
}