TY - JOUR AU - S. I. Adian TI - On the embeddability of semigroups in groups JO - Doklady Akademii Nauk PY - 1960 SP - 255 EP - 257 VL - 133 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_133_2_a0/ LA - ru ID - DAN_1960_133_2_a0 ER -