%0 Journal Article
%A Z. M. Kochetkova
%T The isochrony of a system of three differential equations in the presence of a family of nonperiodic solutions in the neighborhood of the origin
%J Differencialʹnye uravneniâ
%D 1971
%P 2279-2282
%V 7
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_12_a21/
%G ru
%F DE_1971_7_12_a21