TY  - JOUR
AU  - V. Ya. Ivrii
TI  - Exponential decay of the solution of the wave equation outside an almost star-shaped region
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 938
EP  - 940
VL  - 189
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_189_5_a3/
LA  - ru
ID  - DAN_1969_189_5_a3
ER  -