TY  - JOUR
AU  - V. M. Babich
AU  - N. S. Grigor'ev
TI  - Space-time ray method of the calculation of waves in slightly inhomogeneous layered medium
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1980
SP  - 5
EP  - 18
VL  - 99
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1980_99_a1/
LA  - ru
ID  - ZNSL_1980_99_a1
ER  -