@article{BAG_1978__7_138150,
     author = {P. SCHREIBER},
     title = {Kategorizit\"atsbeweise in der {Geometrie}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {79--90},
     publisher = {mathdoc},
     volume = {7},
     year = {1978},
     url = {http://geodesic.mathdoc.fr/item/BAG_1978__7_138150/}
}