TY  - JOUR
AU  - Yu. A. Mitropol'skii
AU  - V. L. Kulik
TI  - Invariant manifolds of autonomous differential equations, and sign-variable Lyapunov functions
JO  - Differencialʹnye uravneniâ
PY  - 1992
SP  - 398
EP  - 405
VL  - 28
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1992_28_3_a4/
LA  - ru
ID  - DE_1992_28_3_a4
ER  -