%0 Journal Article %A G. Lusztig %A D. Kazhdan %T Proof of the Deligne-Langlands conjecture for Hecke algebras.. %J Inventiones mathematicae %D 1987 %P 153-216 %V 87 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1987__87_143417/ %F IM_1987__87_143417