TY  - JOUR
AU  - I. N. Sergeev
TI  - Sharp upper bounds of mobility of the Ljapunov exponents of a system of differential equations and the behavior of the exponents under perturbations approaching
JO  - Differencialʹnye uravneniâ
PY  - 1980
SP  - 438
EP  - 448
VL  - 16
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1980_16_3_a6/
LA  - ru
ID  - DE_1980_16_3_a6
ER  -