%0 Journal Article
%A V. M. Babich
%T Absence of singularities of Gaussian beams in diffusion equation case
%J Zapiski Nauchnykh Seminarov POMI
%D 1991
%P 14-18
%V 195
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1991_195_a1/
%G ru
%F ZNSL_1991_195_a1