@article{BSMF_2015__143_2_229_0,
     author = {Orr, Martin},
     title = {Lower bounds for ranks of {Mumford-Tate~groups}},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {229--246},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {143},
     number = {2},
     year = {2015},
     doi = {10.24033/bsmf.2684},
     mrnumber = {3351177},
     zbl = {1325.14061},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.24033/bsmf.2684/}
}