%0 Journal Article
%A B. S. Bardin
%T On nonlinear oscillations of Hamiltonian system in case of fourth order resonance
%J Russian journal of nonlinear dynamics
%D 2007
%P 57-74
%V 3
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ND_2007_3_1_a3/
%G ru
%F ND_2007_3_1_a3