TY - JOUR AU - V. A. Andrunakievich AU - Yu. M. Ryabukhin TI - A contribution to the theory of ideals in rings, modules and groupoids JO - Doklady Akademii Nauk PY - 1966 SP - 495 EP - 498 VL - 168 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1966_168_3_a0/ LA - ru ID - DAN_1966_168_3_a0 ER -