%0 Journal Article %A M. E. B. Bekka %A M. Mayer %T On Kazhdan's Property (T) and Kazhdan Constants Associated to a Laplacian for SL(3,R) %J Journal of Lie theory %D 2000 %P 093-105 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_2000_10_1_a4/ %F JLT_2000_10_1_a4