TY  - JOUR
AU  - A. A. Shestakov
AU  - A. N. Stepanov
TI  - Index and divergence criteria for the stability of a singular point of an autonomous system of differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1979
SP  - 650
EP  - 661
VL  - 15
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1979_15_4_a8/
LA  - ru
ID  - DE_1979_15_4_a8
ER  -