TY  - JOUR
AU  - V. I. Bulgakov
AU  - A. A. Grin'
TI  - On a bifurcation of a non-rough focus of a third-order autonomous system
JO  - Differencialʹnye uravneniâ
PY  - 1996
SP  - 1703
VL  - 32
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1996_32_12_a16/
LA  - ru
ID  - DE_1996_32_12_a16
ER  -