%0 Journal Article
%A И.Г. Петровский
%T On the diffusion of waves and the lacunas for hyperbolic equations
%J Matematičeskij sbornik
%D 1945
%P 289-370
%V 59
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS_1945__59_3_a0/
%G en
%F MS_1945__59_3_a0