TY - JOUR AU - M. I. Ronzhina AU - L. A. Manita AU - L. V. Lokutsievskiy TI - Neighborhood of the Second-Order Singular Regime in Problems with Control in a Disk JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2021 SP - 222 EP - 236 VL - 315 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2021_315_a15/ LA - ru ID - TM_2021_315_a15 ER -