TY  - JOUR
AU  - B. S. Kalitin
TI  - On the method of sign-constant Lyapunov functions for nonautonomous differential systems
JO  - Differencialʹnye uravneniâ
PY  - 1995
SP  - 583
EP  - 590
VL  - 31
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1995_31_4_a3/
LA  - ru
ID  - DE_1995_31_4_a3
ER  -