TY - JOUR AU - A. Ya. Aǐzenshtat TI - Semisimplicity of semigroups of endomorphisms of ordered sets JO - Doklady Akademii Nauk PY - 1962 SP - 9 EP - 11 VL - 142 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1962_142_1_a0/ LA - ru ID - DAN_1962_142_1_a0 ER -