%0 Journal Article %A Shahidi, Freydoon %T Some Results on L-Indistinguishability for SL(r) %J Canadian journal of mathematics %D 1983 %P 1075-1109 %V 35 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1983-060-9/ %R 10.4153/CJM-1983-060-9 %F 10_4153_CJM_1983_060_9