%0 Journal Article
%A William A. Graham
%T Functions on the universal cover of the prinicpal nilpotent orbit.
%J Inventiones mathematicae
%D 1992
%P 15-28
%V 108
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1992__108_2_143985/
%F IM_1992__108_2_143985