%0 Journal Article %A Lewis Phylip Bowen %T A measure-conjugacy invariant for free group actions %J Annals of mathematics %D 2010 %P 1387-1400 %V 171 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2010.171.1387/ %R 10.4007/annals.2010.171.1387 %G en %F 10_4007_annals_2010_171_1387