%0 Journal Article %A B. I. Plotkin %T $\Omega$-semigroups, $\Omega$-rings and representations %J Doklady Akademii Nauk %D 1963 %P 1037-1040 %V 149 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_149_5_a8/ %G ru %F DAN_1963_149_5_a8