TY  - JOUR
AU  - N. Ya. Kirpichnikova
TI  - Equations for a~wave front, rays, and a~phase function near a~regular region of the caustic formed by space-time rays
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1992
SP  - 92
EP  - 100
VL  - 203
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1992_203_a7/
LA  - ru
ID  - ZNSL_1992_203_a7
ER  -