%0 Journal Article
%A M. A. Galakhov
%T Non-classical boundary value problems for symmetric linear systems of partial differential equations of the first order
%J Differencialʹnye uravneniâ
%D 1965
%P 1620-1627
%V 1
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1965_1_12_a8/
%G ru
%F DE_1965_1_12_a8