TY - JOUR AU - V. Ya. Gutlyanskii TI - On the method of variations for univalent analytic functions with quasi- conformal extension JO - Doklady Akademii Nauk PY - 1977 SP - 1045 EP - 1048 VL - 236 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1977_236_5_a1/ LA - ru ID - DAN_1977_236_5_a1 ER -