@article{MAN_1956__131_160476,
     author = {H. Naumann},
     title = {Eine affine {Rechtwinkelgeometrie.}},
     journal = {Mathematische Annalen},
     pages = {17--27},
     publisher = {mathdoc},
     volume = {131},
     year = {1956},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1956__131_160476/}
}