TY  - JOUR
AU  - V. M. Babich
TI  - Absence of singularities of Gaussian beams in diffusion equation case
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1991
SP  - 14
EP  - 18
VL  - 195
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1991_195_a1/
LA  - ru
ID  - ZNSL_1991_195_a1
ER  -