%0 Journal Article %A D. Pickrell %T H4(BK, Z) and Operator Algebras %J Journal of Lie theory %D 2004 %P 199-213 %V 14 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_2004_14_1_JLT_2004_14_1_a10/ %F JLT_2004_14_1_JLT_2004_14_1_a10