%0 Journal Article %A Bruce Hughes %T Local similarities and the Haagerup property (with an appendix by Daniel S. Farley) %J Groups, geometry, and dynamics %D 2009 %P 299-315 %V 3 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4171/ggd/58/ %R 10.4171/ggd/58 %F 10_4171_ggd_58