TY  - JOUR
AU  - A. P. Kachalov
TI  - Space-time ray method for waves of small deformation in a~nonlinear elastic medium
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1984
SP  - 61
EP  - 72
VL  - 140
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1984_140_a5/
LA  - ru
ID  - ZNSL_1984_140_a5
ER  -