TY  - JOUR
AU  - A. I. Tovbis
TI  - Systems of linear differential equations with a small parameter
JO  - Doklady Akademii Nauk
PY  - 1985
SP  - 566
EP  - 570
VL  - 285
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1985_285_3_a11/
LA  - ru
ID  - DAN_1985_285_3_a11
ER  -