TY  - JOUR
AU  - V. M. Filippov
TI  - A variational method for solving boundary value problems for the wave equation
JO  - Differencialʹnye uravneniâ
PY  - 1984
SP  - 1961
EP  - 1968
VL  - 20
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1984_20_11_a15/
LA  - ru
ID  - DE_1984_20_11_a15
ER  -