%0 Journal Article
%A Eduard Zehnder
%A Dietmar Salamon
%T KAM theory in configuration space.
%J Commentarii mathematici Helvetici
%D 1989
%P 84-132
%V 64
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1989__64_1_140144/
%F CMH_1989__64_1_140144