%0 Journal Article %A V. V. Goryaǐnov %T A general uniqueness theorem and the geometry of extremal conformal mappings in problems of distortion and rotation %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1986 %P 40-47 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1986_10_a3/ %G ru %F IVM_1986_10_a3