@incollection{AST_1995__232__67_0,
     author = {Bekka, Mohammed E. B. and Valette, Alain},
     title = {Lattices in semi-simple {Lie} groups, and multipliers of group $C^\ast$-algebras},
     booktitle = {Recent advances in operator algebras - Orl\'eans, 1992},
     series = {Ast\'erisque},
     pages = {67--79},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {232},
     year = {1995},
     mrnumber = {1372525},
     zbl = {0851.22006},
     language = {en},
     url = {http://www.numdam.org/item/AST_1995__232__67_0/}
}