%0 Journal Article
%A A. N. Kanatnikov
%A A. P. Krishchenko
%T Qualitative Properties of a Duffing System with Polynomial Nonlinearity
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2020
%P 197-209
%V 308
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_2020_308_a13/
%G ru
%F TM_2020_308_a13