%0 Journal Article
%A V. E. Balabaev
%T First-order canonical elliptic systems
%J Differencialʹnye uravneniâ
%D 1991
%P 2082-2094
%V 27
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_12_a8/
%G ru
%F DE_1991_27_12_a8