TY  - JOUR
AU  - E. V. Voskresenskii
TI  - Asymptotic equilibrium, periodic solutions, and Lyapunov's direct method
JO  - Differencialʹnye uravneniâ
PY  - 1999
SP  - 729
EP  - 732
VL  - 35
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1999_35_6_a1/
LA  - ru
ID  - DE_1999_35_6_a1
ER  -