%0 Journal Article
%A L. G. Khazin
%T Energy integrals of hyperbolic systems with constant coefficients
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1965
%V 20
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1965_20_2_a16/
%G ru
%F RM_1965_20_2_a16