%0 Journal Article %A Bachir Bekka %A Yves Cornulier %T A spectral gap property for subgroups of finite covolume in Lie groups %J Colloquium Mathematicum %D 2010 %P 175-182 %V 118 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm118-1-9/ %R 10.4064/cm118-1-9 %G en %F 10_4064_cm118_1_9