%0 Journal Article
%A I. A. Bikchantaev
%T Differential boundary value problems for first-order elliptic systems on Riemann surfaces
%J Differencialʹnye uravneniâ
%D 1987
%P 1725-1736
%V 23
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_10_a8/
%G ru
%F DE_1987_23_10_a8