%0 Journal Article
%A Nguyen Tien Zung
%T Convergence versus integrability in Birkhoff normal form
%J Annals of mathematics
%D 2005
%P 141-156
%V 161
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4007/annals.2005.161.141/
%R 10.4007/annals.2005.161.141
%G en
%F 10_4007_annals_2005_161_141