TY  - JOUR
AU  - L. S. Pontryagin
AU  - E. F. Mishchenko
TI  - Some problems in the theory of differential equations with a~small parameter
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1985
SP  - 99
EP  - 118
VL  - 169
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1985_169_a6/
LA  - ru
ID  - TM_1985_169_a6
ER  -