%0 Journal Article
%A Yu. N. Bibikov
%T Bifurcation of the generation of invariant tori with infinitesimal frequency
%J Algebra i analiz
%D 1998
%P 81-92
%V 10
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_1998_10_2_a2/
%G ru
%F AA_1998_10_2_a2