TY  - JOUR
AU  - A. B. Shabat
TI  - Boundary-value problems with small parameter for ordinary linear differential equations
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1962
VL  - 17
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1962_17_1_a19/
LA  - ru
ID  - RM_1962_17_1_a19
ER  -