TY  - JOUR
AU  - M. M. Popov
TI  - Wave field in the caustic region in a~vicinity of a~boundary flex point
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1979
SP  - 246
EP  - 260
VL  - 89
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1979_89_a17/
LA  - ru
ID  - ZNSL_1979_89_a17
ER  -