TY - JOUR AU - N. Yu. Bakaev AU - A. B. Bakushinskii TI - On the theory of approximate methods for solving an ill-posed JO - Doklady Akademii Nauk PY - 1990 SP - 777 EP - 782 VL - 312 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1990_312_4_a0/ LA - ru ID - DAN_1990_312_4_a0 ER -