%0 Journal Article %A Misha Gromov %T Entropy and isoperimetry for linear and non-linear group actions %J Groups, geometry, and dynamics %D 2008 %P 499-593 %V 2 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4171/ggd/48/ %R 10.4171/ggd/48 %F 10_4171_ggd_48