TY  - JOUR
AU  - Gonzalo Contreras
TI  - Geodesic flows with positive topological entropy, twist maps and hyperbolicity
JO  - Annals of mathematics
PY  - 2010
SP  - 761
EP  - 808
VL  - 172
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4007/annals.2010.172.761/
DO  - 10.4007/annals.2010.172.761
LA  - en
ID  - 10_4007_annals_2010_172_761
ER  -