TY  - JOUR
AU  - V. M. Filippov
AU  - A. È. Avakyan
TI  - The existence of optimal domains in problems with $B$-symmetric, $B$-positive operators
JO  - Differencialʹnye uravneniâ
PY  - 1992
SP  - 2123
EP  - 2128
VL  - 28
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1992_28_12_a13/
LA  - ru
ID  - DE_1992_28_12_a13
ER  -