@article{PMIHES_1988__67__145_0,
     author = {Lusztig, George},
     title = {Cuspidal local systems and graded {Hecke} algebras, {I}},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {145--202},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {67},
     year = {1988},
     mrnumber = {972345},
     zbl = {0699.22026},
     language = {en},
     url = {http://www.numdam.org/item/PMIHES_1988__67__145_0/}
}