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@article{MZ_1968__103_170920, author = {Fred Piper}, title = {The {Orbit} {Structure} of {Collineation} {Groups} of {Finite} {Projective} {Planes.}}, journal = {Mathematische Zeitschrift}, pages = {318--332}, publisher = {mathdoc}, volume = {103}, year = {1968}, zbl = {0155.49202}, url = {http://geodesic.mathdoc.fr/item/MZ_1968__103_170920/} }
Fred Piper. The Orbit Structure of Collineation Groups of Finite Projective Planes.. Mathematische Zeitschrift, Tome 103 (1968), pp. 318-332. http://geodesic.mathdoc.fr/item/MZ_1968__103_170920/