%0 Journal Article %A Henryk Hecht %A Winfried Schmid %T A Proof of Blattner's Conjecture. %J Inventiones mathematicae %D 1976 %P 129-154 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1976__31_142358/ %F IM_1976__31_142358