%0 Journal Article %A Richard D. Byrd %A Justin T. Lloyd %A James W. Stepp %T On the cardinality of set products in groups %J Colloquium Mathematicum %D 1980 %P 47-54 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-43-1-47-54/ %R 10.4064/cm-43-1-47-54 %G en %F 10_4064_cm_43_1_47_54