%0 Journal Article
%A V. G. Sheretov
%T The Dirichlet principle and extremal quasi-conformal mappings of open Riemann surfaces
%J Doklady Akademii Nauk
%D 1974
%P 558-560
%V 219
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1974_219_3_a11/
%G ru
%F DAN_1974_219_3_a11