%0 Journal Article %A Wallach, Nolan R. %T Invariant differential operators on a reductive Lie algebra and Weyl group representations %J Journal of the American Mathematical Society %D 1993 %P 779-816 %V 06 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1993-1212243-2/ %R 10.1090/S0894-0347-1993-1212243-2 %F 10_1090_S0894_0347_1993_1212243_2