%0 Journal Article %A Sigurd B. Angenent %T Curve shortening and the topology of closed geodesics on surfaces %J Annals of mathematics %D 2005 %P 1187-1241 %V 162 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2005.162.1187/ %R 10.4007/annals.2005.162.1187 %G en %F 10_4007_annals_2005_162_1187