TY  - JOUR
AU  - V. Ya. Ivrii
TI  - The propagation of singularities of a solution of the wave equation near a boundary
JO  - Doklady Akademii Nauk
PY  - 1978
SP  - 772
EP  - 774
VL  - 239
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1978_239_4_a4/
LA  - ru
ID  - DAN_1978_239_4_a4
ER  -