TY - JOUR AU - D. Pickrell TI - H4(BK, Z) and Operator Algebras JO - Journal of Lie theory PY - 2004 SP - 199 EP - 213 VL - 14 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JLT_2004_14_1_JLT_2004_14_1_a10/ ID - JLT_2004_14_1_JLT_2004_14_1_a10 ER -