@article{IM_1991__104_1_143882,
     author = {Christopher Deninger},
     title = {On the ...-factor attached to motives.},
     journal = {Inventiones mathematicae},
     pages = {245--262},
     publisher = {mathdoc},
     volume = {104},
     number = {1},
     year = {1991},
     zbl = {0739.14010},
     url = {http://geodesic.mathdoc.fr/item/IM_1991__104_1_143882/}
}