TY - JOUR AU - A. V. Chernov TI - On preservation of global solvability of controlled second kind operator equation JO - Ufa mathematical journal PY - 2020 SP - 56 EP - 81 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UFA_2020_12_1_a4/ LA - en ID - UFA_2020_12_1_a4 ER -