TY  - JOUR
AU  - A. M. Il'in
TI  - Investigation of singularly perturbed boundary value problems by the method of matching asymptotic expansions
JO  - Differencialʹnye uravneniâ
PY  - 1985
SP  - 1760
EP  - 1766
VL  - 21
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1985_21_10_a18/
LA  - ru
ID  - DE_1985_21_10_a18
ER  -