TY  - JOUR
AU  - V. Ya. Ivrii
TI  - Propagation of singularities of a solution of the wave equation in a domain having angular points
JO  - Doklady Akademii Nauk
PY  - 1978
SP  - 536
EP  - 539
VL  - 241
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1978_241_3_a8/
LA  - ru
ID  - DAN_1978_241_3_a8
ER  -