TY - JOUR AU - V. I. Maksimov TI - Extremal Shift in a Problem of Tracking a Solution of an Operator Differential Equation JO - Trudy Instituta matematiki i mehaniki PY - 2019 SP - 141 EP - 152 VL - 25 IS - 3 UR - http://geodesic.mathdoc.fr/item/TIMM_2019_25_3_a12/ LA - ru ID - TIMM_2019_25_3_a12 ER -