@article{GDZPPN002092085, title = {A Proof of Blattner's Conjecture.}, journal = {Inventiones mathematicae}, volume = {34}, year = {1976}, pages = {129-154}, zbl = {0319.22012}, url = {http://dml.mathdoc.fr/item/GDZPPN002092085} }
Hecht, Henryk; Schmid, Winfried. A Proof of Blattner's Conjecture.. Inventiones mathematicae, Tome 34 (1976) pp. 129-154. http://gdmltest.u-ga.fr/item/GDZPPN002092085/