%0 Journal Article
%A Enrique R. Pujals
%A Martín Sambarino
%T Homoclinic tangencies and hyperbolicity for surface diffeomorphisms
%J Annals of mathematics
%D 2000
%V 151
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM_2000_151_3_a1/
%F AM_2000_151_3_a1