Combinatorial relations in projective geometries

[1] Birkhoff G, 1933, P CAMB PHILOS SOC, V29, P441

[2] CARTAN E, 1929, J MATH PURE APPL, V8, P11

[3] GRELL H, 1926, MATH ANN, V97, P490

[4] Non-Desarguesian and non-Pascalian geometries [J]. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, 1907, 8 (1-4) : 379 - 388

[5] Veblen O., 1910, PROJECTIVE GEOMETRY

[6] 1930, J MATH, V162, P1

[7] 1932, GES WERKE BRAUNSCHWE, V2, P264

[1] Birkhoff G, 1933, P CAMB PHILOS SOC, V29, P441

[2] CARTAN E, 1929, J MATH PURE APPL, V8, P11

[3] GRELL H, 1926, MATH ANN, V97, P490

[4] Non-Desarguesian and non-Pascalian geometries [J]. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, 1907, 8 (1-4) : 379 - 388

[5] Veblen O., 1910, PROJECTIVE GEOMETRY

[6] 1930, J MATH, V162, P1

[7] 1932, GES WERKE BRAUNSCHWE, V2, P264