%0 Journal Article %A G. Song %T Identities of semigroup rings over semilattices of completely (O-)simple semigroups. %J Semigroup forum %D 1995 %P 295-298 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1995__51_1_135417/ %F SF_1995__51_1_135417