TY  - JOUR
AU  - S. A. Stepin
TI  - Non-selfadjoint singular perturbations and spectral properties of the~Orr--Sommerfeld boundary-value problem
JO  - Sbornik. Mathematics
PY  - 1997
SP  - 137
EP  - 156
VL  - 188
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1997_188_1_a6/
LA  - en
ID  - SM_1997_188_1_a6
ER  -