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@article{MZ_1966__92_170555, author = {F.C. Piper}, title = {Collineation {Groups} {Containing} {Elations.} {II.}}, journal = {Mathematische Zeitschrift}, pages = {281--287}, publisher = {mathdoc}, volume = {92}, year = {1966}, zbl = {0158.19406}, url = {http://geodesic.mathdoc.fr/item/MZ_1966__92_170555/} }
F.C. Piper. Collineation Groups Containing Elations. II.. Mathematische Zeitschrift, Tome 92 (1966), pp. 281-287. http://geodesic.mathdoc.fr/item/MZ_1966__92_170555/