@article{BAG_1980__10_138178,
     author = {A. SVEC and R. SULANKE},
     title = {Zur {Differentialgeometrie} der {Untermannigfaltigkeiten} eines {Kleinschen} {Raumes}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {63--86},
     publisher = {mathdoc},
     volume = {10},
     year = {1980},
     zbl = {0482.53041},
     url = {http://geodesic.mathdoc.fr/item/BAG_1980__10_138178/}
}