%0 Journal Article
%A N. K. Bliev
%T On a class of elliptic systems of first-order differential equations
%J Doklady Akademii Nauk
%D 1975
%P 1001-1003
%V 220
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_220_5_a0/
%G ru
%F DAN_1975_220_5_a0