TY  - JOUR
AU  - Yu. S. Kolesov
TI  - The amplitude method for constructing multifrequency oscillations of nonlinear systems with delay
JO  - Differencialʹnye uravneniâ
PY  - 1981
SP  - 1596
EP  - 1602
VL  - 17
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1981_17_9_a6/
LA  - ru
ID  - DE_1981_17_9_a6
ER  -