@article{JEMS_2016_18_3_a3,
     author = {Matilde Marcolli and Gon\c{c}alo Tabuada},
     title = {Noncommutative numerical motives, {Tannakian} structures, and motivic {Galois} groups},
     journal = {Journal of the European Mathematical Society},
     pages = {623--655},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {2016},
     doi = {10.4171/jems/598},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/598/}
}