TY  - JOUR
AU  - A. A. Il'in
TI  - On the question of finding the limiting cycles of an autonomous system of differential equations
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1966
SP  - 64
EP  - 65
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1966_1_a7/
LA  - ru
ID  - IVM_1966_1_a7
ER  -