%0 Journal Article
%A M. S. Agranovich
%T On the theory of boundary problems for symmetrizable systems of first order
%J Sbornik. Mathematics
%D 1967
%P 143-171
%V 2
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1967_2_2_a0/
%G en
%F SM_1967_2_2_a0