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@article{DCG_1990__5_2_131108, author = {J.P.S. Kung}, title = {Combinatorial {Geometries} {Representable} over {GF(3)} and {GF(q).} {I.} {The} {Number} of {Points.}}, journal = {Discrete & computational geometry}, pages = {83--95}, publisher = {mathdoc}, volume = {5}, number = {2}, year = {1990}, zbl = {0697.51007}, url = {http://geodesic.mathdoc.fr/item/DCG_1990__5_2_131108/} }
J.P.S. Kung. Combinatorial Geometries Representable over GF(3) and GF(q). I. The Number of Points.. Discrete & computational geometry, Tome 5 (1990) no. 2, pp. 83-95. http://geodesic.mathdoc.fr/item/DCG_1990__5_2_131108/