%0 Journal Article %A M. Bekka %A M. Cowling %A P. de La Harpe %T Some groups whose reduced $C^\ast $-algebra is simple %J Publications Mathématiques de l'IHÉS %D 1994 %P 117-134 %V 80 %I Institut des Hautes Études Scientifiques %U https://pmihes.centre-mersenne.org/articles/10.1007/BF02698898/ %R 10.1007/BF02698898 %G en %F PMIHES_1994__80__117_0