TY - JOUR AU - Lewis Bowen AU - Amos Nevo TI - A horospherical ratio ergodic theorem for actions of free groups JO - Groups, geometry, and dynamics PY - 2014 SP - 331 EP - 353 VL - 8 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4171/ggd/228/ DO - 10.4171/ggd/228 ID - 10_4171_ggd_228 ER -