%0 Journal Article %A Goro Shimura %T On the fundamental periods of automorphic forms of arithmetic type. %J Inventiones mathematicae %D 1990 %P 399-428 %V 102 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1990__102_2_143840/ %F IM_1990__102_2_143840