TY  - JOUR
AU  - Yu. A. Konyaev
TI  - A new approach to the investigation of linear singularly perturbed problems in the presence of identically multiple and imaginary points of the spectrum
JO  - Differencialʹnye uravneniâ
PY  - 1985
SP  - 1811
EP  - 1814
VL  - 21
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1985_21_10_a27/
LA  - ru
ID  - DE_1985_21_10_a27
ER  -