TY - JOUR AU - A. J. Lovater TI - Boundary behavior of the derivative of a univalent function JO - Doklady Akademii Nauk PY - 1970 SP - 1033 EP - 1035 VL - 195 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_195_5_a7/ LA - ru ID - DAN_1970_195_5_a7 ER -