TY - JOUR AU - A. I. Mal'tsev TI - Strictly related models and recursively perfect algebras JO - Doklady Akademii Nauk PY - 1962 SP - 276 EP - 279 VL - 145 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1962_145_2_a12/ LA - ru ID - DAN_1962_145_2_a12 ER -