TY  - JOUR
AU  - V. K. Romanko
TI  - Boundary value problems for a certain class of differential operators
JO  - Differencialʹnye uravneniâ
PY  - 1974
SP  - 117
EP  - 131
VL  - 10
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_1_a13/
LA  - ru
ID  - DE_1974_10_1_a13
ER  -