%0 Journal Article
%A M. G. Medvedeva
%T Investigation of the stability of systems that have invariant toroidal manifolds
%J Differencialʹnye uravneniâ
%D 1992
%P 2169-2172
%V 28
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1992_28_12_a20/
%G ru
%F DE_1992_28_12_a20