TY  - JOUR
AU  - A. G. Kamenskii
TI  - Boundary value problems for equations with formally symmetric differential-difference operators
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 815
EP  - 824
VL  - 12
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_5_a3/
LA  - ru
ID  - DE_1976_12_5_a3
ER  -