TY - JOUR AU - V. N. Dubinin TI - Boundary Distortion and the Schwarzian Derivative of a Univalent Function in a Circular Annulus JO - Matematičeskie zametki PY - 2023 SP - 827 EP - 835 VL - 113 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2023_113_6_a3/ LA - ru ID - MZM_2023_113_6_a3 ER -