TY - JOUR AU - B. M. Shain TI - On subdirectly irreducible semigroups JO - Doklady Akademii Nauk PY - 1962 SP - 999 EP - 1002 VL - 144 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1962_144_5_a14/ LA - ru ID - DAN_1962_144_5_a14 ER -