%0 Journal Article
%A M. T. Teryokhin
%T Nonzero Periodic Solutions of Nonlinear Systems of Ordinary Differential Equations with a Singular Matrix Multiplying the Derivatives
%J Differencialʹnye uravneniâ
%D 2003
%P 1645-1653
%V 39
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2003_39_12_a7/
%G ru
%F DE_2003_39_12_a7