TY  - JOUR
AU  - N. A. Izobov
TI  - On the Smallness of Perturbations Preserving the Higher Exponent of a Linear Differential System
JO  - Differencialʹnye uravneniâ
PY  - 2005
SP  - 1592
EP  - 1596
VL  - 41
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2005_41_12_a1/
LA  - ru
ID  - DE_2005_41_12_a1
ER  -