TY  - JOUR
AU  - N. S. Smirnova
TI  - On finding of dynamic equivalent wave groups propagating in the layered elastic media
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1991
SP  - 154
EP  - 160
VL  - 195
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1991_195_a13/
LA  - ru
ID  - ZNSL_1991_195_a13
ER  -