TY  - JOUR
AU  - N. I. Popivanov
TI  - Overdetermined problems for the wave equation and their nonlocal regularization
JO  - Differencialʹnye uravneniâ
PY  - 1988
SP  - 1941
EP  - 1954
VL  - 24
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1988_24_11_a11/
LA  - ru
ID  - DE_1988_24_11_a11
ER  -