@article{MZ_1958__69_169755,
     author = {Sibylla Crampe},
     title = {Angeordnete projektive {Ebenen.}},
     journal = {Mathematische Zeitschrift},
     pages = {435--462},
     publisher = {mathdoc},
     volume = {69},
     year = {1958},
     zbl = {0082.35801},
     url = {http://geodesic.mathdoc.fr/item/MZ_1958__69_169755/}
}