%0 Journal Article %A Sandler, Reuben %T The collineation groups of some finite projective planes %J Portugaliae mathematica %D 1962 %P 189-199 %V 21 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1962__21_3_114891/ %G en %F PORMA_1962__21_3_114891