@article{CM_1992__82_1_1_0,
     author = {Andr\'e, Yves},
     title = {Mumford-Tate groups of mixed {Hodge} structures and the theorem of the fixed part},
     journal = {Compositio Mathematica},
     pages = {1--24},
     publisher = {Kluwer Academic Publishers},
     volume = {82},
     number = {1},
     year = {1992},
     mrnumber = {1154159},
     zbl = {0770.14003},
     language = {en},
     url = {http://www.numdam.org/item/CM_1992__82_1_1_0/}
}