%0 Journal Article
%A S. S. Belyavsky
%T Construction of adjoint differential systems in the analytic case
%J Differencialʹnye uravneniâ
%D 1970
%P 1716-1717
%V 6
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1970_6_9_a19/
%G ru
%F DE_1970_6_9_a19