@article{10_4171_dm_97,
     author = {Christopher Deninger},
     title = {On the $\Gamma$-factors of motives. {II}},
     journal = {Documenta mathematica},
     pages = {67--95},
     year = {2001},
     volume = {6},
     doi = {10.4171/dm/97},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/97/}
}