@article{MOMA_1971__75_177556,
     author = {Josef P. Tschupik},
     title = {\"Uber den {Bau} gewisser {Bildersysteme} im projektiven {Rn.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {263--271},
     publisher = {mathdoc},
     volume = {75},
     year = {1971},
     zbl = {0218.50008},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1971__75_177556/}
}