@article{IM_1976__34_142392,
     author = {Serge Lang and John Coates},
     title = {Diophantine {Approximation} on {Abelian} {Varieties} with {Complex} {Mulitplication.}},
     journal = {Inventiones mathematicae},
     pages = {129--134},
     year = {1976},
     volume = {34},
     zbl = {0342.10018},
     url = {http://geodesic.mathdoc.fr/item/IM_1976__34_142392/}
}