JournalsggdVol. 5, No. 4Volume 5, No. 4 (2011) Groups, Geometry, and Dynamicspp. 691–728Characterizing the Cantor bi-cube in asymptotic categoriesTaras BanakhIhor Zarichnyipp. 729–765Asphericity and small cancellation theory for rotation families of groupsRémi Coulonpp. 767–785Commensurability classes of discrete arithmetic hyperbolic groupsColin Maclachlanpp. 787–803Quasi-isometries of rank one S-arithmetic latticesKevin Wortman