%0 Journal Article
%A A. Dzhuraev
%T On properties of some degenerate elliptic systems of first order in the plane
%J Doklady Akademii Nauk
%D 1975
%P 533-536
%V 223
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_223_3_a3/
%G ru
%F DAN_1975_223_3_a3