%0 Journal Article %A Peter J. Cameron %T Transitivity of Permuation Groups on Unordered Sets. %J Mathematische Zeitschrift %D 1976 %P 127-140 %V 148 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1976__148_172358/ %F MZ_1976__148_172358