%0 Journal Article
%A John N. Mather
%T Area preserving twist homeomorphism of the annulus.
%J Commentarii mathematici Helvetici
%D 1979
%P 397-404
%V 54
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1979__54_139793/
%F CMH_1979__54_139793