Order in projective and in descriptive geometry
Compositio Mathematica, Tome 11 (1953), pp. 60-70. 
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     author = {Wyler, Oswald},
     title = {Order in projective and in descriptive geometry},
     journal = {Compositio Mathematica},
     pages = {60--70},
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     year = {1953},
     zbl = {0053.10701},
     mrnumber = {56310},
     language = {en},
     url = {http://www.numdam.org/item/CM_1953__11__60_0/}
}
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Wyler, Oswald. Order in projective and in descriptive geometry. Compositio Mathematica, Tome 11 (1953), pp. 60-70. http://www.numdam.org/item/CM_1953__11__60_0/

H.S.M. Coxeter, [1] The Real Projective Plane, New York, 1949. | MR 30205 | Zbl 0032.11302

David Hilbert, [2] Grundlagen der Geometrie, 7. Auflage, Leipzig und Berlin 1930. | JFM 56.0481.01