TY  - JOUR
AU  - V. B. Filippov
TI  - On the exact justification of the short wave approximation in a~shadow region
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1973
SP  - 142
EP  - 205
VL  - 34
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1973_34_a8/
LA  - ru
ID  - ZNSL_1973_34_a8
ER  -