TY - JOUR AU - Misha Gromov TI - Entropy and isoperimetry for linear and non-linear group actions JO - Groups, geometry, and dynamics PY - 2008 SP - 499 EP - 593 VL - 2 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4171/ggd/48/ DO - 10.4171/ggd/48 ID - 10_4171_ggd_48 ER -