%0 Journal Article %A T.A. Springer %T Trigonometric Sums, Green Functions on Finite Groups and Representation of Weyl Groups. %J Inventiones mathematicae %D 1976 %P 173-208 %V 36 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1976__36_142418/ %F IM_1976__36_142418