TY - JOUR AU - M. G. Peretyat'kin TI - The similarity of properties of recursively enumerable and JO - Doklady Akademii Nauk PY - 1989 SP - 788 EP - 791 VL - 308 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1989_308_4_a3/ LA - ru ID - DAN_1989_308_4_a3 ER -