%0 Journal Article %A Glastad, Bruce %A Hopkins, Glenn %T Commutative semigroup rings which are principal ideal rings %J Commentationes Mathematicae Universitatis Carolinae %D 1980 %P 371-377 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1980__21_2_a14/ %G en %F CMUC_1980__21_2_a14