TY  - JOUR
AU  - Z. A. Yanson
TI  - High order approximations of asymptotic solutions for wave equation in a~plane waveguide
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1972
SP  - 176
EP  - 191
VL  - 25
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1972_25_a11/
LA  - ru
ID  - ZNSL_1972_25_a11
ER  -