%0 Journal Article %A Arthur, James %T A measure on the Unipotent Variety %J Canadian journal of mathematics %D 1985 %P 1237-1274 %V 37 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1985-067-0/ %R 10.4153/CJM-1985-067-0 %F 10_4153_CJM_1985_067_0