@article{IM_1988__94_2_143627,
     author = {Goro Shimura},
     title = {On the critical values of certain {Dirichlet} series and the periods of automorphic forms.},
     journal = {Inventiones mathematicae},
     pages = {245--306},
     publisher = {mathdoc},
     volume = {94},
     number = {2},
     year = {1988},
     zbl = {0656.10018},
     url = {http://geodesic.mathdoc.fr/item/IM_1988__94_2_143627/}
}