%0 Journal Article %A Donald Livingstone %A Ascher Wagner %T Transitivity of finite permutation groups on unordered sets. %J Mathematische Zeitschrift %D 1965 %P 393-403 %V 90 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1965__90_170498/ %F MZ_1965__90_170498