TY  - JOUR
AU  - L. I. Zhilevich
TI  - The uniqueness conditions for the limit cycle
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 1888
EP  - 1891
VL  - 6
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_10_a17/
LA  - ru
ID  - DE_1970_6_10_a17
ER  -