TY  - JOUR
AU  - Z. M. Kochetkova
TI  - The isochrony of a system of three differential equations in the presence of a family of nonperiodic solutions in the neighborhood of the origin
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 2279
EP  - 2282
VL  - 7
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_12_a21/
LA  - ru
ID  - DE_1971_7_12_a21
ER  -