TY  - JOUR
AU  - A. B. Bazarbekov
TI  - Boundary value problems for the two-dimensional wave equation in a characteristic cone
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 1551
EP  - 1556
VL  - 25
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_9_a11/
LA  - ru
ID  - DE_1989_25_9_a11
ER  -