%0 Journal Article %A Michael Magee %T Quantitative spectral gap for thin groups of hyperbolic isometries %J Journal of the European Mathematical Society %D 2015 %P 151-187 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/500/ %R 10.4171/jems/500 %F JEMS_2015_17_1_a3