TY - JOUR AU - Christopher Deninger TI - On the ...-factor attached to motives. JO - Inventiones mathematicae PY - 1991 SP - 245 EP - 262 VL - 104 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1991__104_1_143882/ ID - IM_1991__104_1_143882 ER -