TY - JOUR AU - Yves Cornulier TI - Subgroups approximatively of finite index and wreath products JO - Groups, geometry, and dynamics PY - 2014 SP - 775 EP - 788 VL - 8 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4171/ggd/247/ DO - 10.4171/ggd/247 ID - 10_4171_ggd_247 ER -