TY - JOUR AU - S. I. Adian TI - On algorithmic problems in effectively complete classes of groups JO - Doklady Akademii Nauk PY - 1958 SP - 13 EP - 16 VL - 123 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1958_123_1_a1/ LA - ru ID - DAN_1958_123_1_a1 ER -