TY - JOUR AU - V. I. Maksimov TI - The principle of extremal shift in a~problem of solving operator equations JO - Trudy Instituta matematiki i mehaniki PY - 2000 SP - 141 EP - 149 VL - 6 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMM_2000_6_1_a8/ LA - ru ID - TIMM_2000_6_1_a8 ER -