TY  - JOUR
AU  - A. S. Demidov
TI  - Elliptic pseudodifferential boundary value problems with a~small parameter in the coefficient of the leading operator
JO  - Sbornik. Mathematics
PY  - 1973
SP  - 439
EP  - 463
VL  - 20
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1973_20_3_a7/
LA  - en
ID  - SM_1973_20_3_a7
ER  -