TY  - JOUR
AU  - I. N. Sergeev
TI  - An upper estimate for the minimal exponent of a three-dimensional system
JO  - Differencialʹnye uravneniâ
PY  - 2000
SP  - 114
EP  - 123
VL  - 36
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2000_36_1_a15/
LA  - ru
ID  - DE_2000_36_1_a15
ER  -