@article{PMIHES_1994__80__117_0,
     author = {Bekka, M. and Cowling, M. and La Harpe, P. de},
     title = {Some groups whose reduced $C^\ast $-algebra is simple},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {117--134},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {80},
     year = {1994},
     mrnumber = {1320606},
     zbl = {0827.22001},
     language = {en},
     url = {http://www.numdam.org/item/PMIHES_1994__80__117_0/}
}