%0 Journal Article %A A.G. Sokolsky %T Radicals of semigroup rings of orthogroups. %J Semigroup forum %D 1990 %P 253-266 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1990__41_2_135053/ %F SF_1990__41_2_135053