@incollection{AST_1993__212__191_0,
     author = {Lusztig, George},
     title = {Appendix: {Coxeter} groups and unipotent representations},
     booktitle = {Repr\'esentations unipotentes g\'en\'eriques et blocs des groupes r\'eductifs finis - Avec un appendice de George Lusztig},
     series = {Ast\'erisque},
     pages = {191--203},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {212},
     year = {1993},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1993__212__191_0/}
}