TY - JOUR AU - B. I. Plotkin TI - $\Omega$-semigroups, $\Omega$-rings and representations JO - Doklady Akademii Nauk PY - 1963 SP - 1037 EP - 1040 VL - 149 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1963_149_5_a8/ LA - ru ID - DAN_1963_149_5_a8 ER -