%0 Journal Article
%A V. Ya. Ivriǐ
%T Correctness of the Cauchy problem for nonstrictly hyperbolic operators.~III. The energy integral
%J Trudy Moskovskogo matematičeskogo obŝestva
%D 1977
%P 151-170
%V 34
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MMO_1977_34_a3/
%G ru
%F MMO_1977_34_a3