%0 Journal Article
%A G. S. Osipenko
%T Perturbation of dynamical systems near invariant manifolds.~I
%J Differencialʹnye uravneniâ
%D 1979
%P 1967-1979
%V 15
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_11_a5/
%G ru
%F DE_1979_15_11_a5