TY  - JOUR
AU  - I. A. Konovalov
TI  - The limit cycles of a certain dynamical system
JO  - Differencialʹnye uravneniâ
PY  - 1974
SP  - 547
EP  - 549
VL  - 10
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_3_a18/
LA  - ru
ID  - DE_1974_10_3_a18
ER  -