%0 Journal Article
%A S. L. Krushkal'
%T A certain class of extremal quasiconformal mappings
%J Doklady Akademii Nauk
%D 1968
%P 1042-1045
%V 179
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1968_179_5_a8/
%G ru
%F DAN_1968_179_5_a8