TY  - JOUR
AU  - O. G. Illarionova
TI  - The central exponent of a linear system of differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 599
EP  - 604
VL  - 25
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_4_a5/
LA  - ru
ID  - DE_1989_25_4_a5
ER  -