TY  - JOUR
AU  - N. J. Yurchuk
TI  - Boundary value problems for differential equations with operator coefficients that depend on a parameter. I.~A priori estimates
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 1645
EP  - 1661
VL  - 12
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_9_a12/
LA  - ru
ID  - DE_1976_12_9_a12
ER  -