@article{10_21136_MB_1991_126194,
     author = {Van\v{c}ura, Zden\v{e}k},
     title = {Zur {Differentialgeometrie} der $n$-dimensionalen {Kugel-} und {Linienmannigfaltigkeiten} im $(n+1)$-dimensionalen euklidischen {Raum}},
     journal = {Mathematica Bohemica},
     pages = {12--19},
     publisher = {mathdoc},
     volume = {116},
     number = {1},
     year = {1991},
     doi = {10.21136/MB.1991.126194},
     mrnumber = {1100423},
     zbl = {0716.53019},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.1991.126194/}
}