@article{GDZPPN002105306, title = {A surjectivity theorem for rigid highest weight modules.}, journal = {Inventiones mathematicae}, volume = {93}, year = {1988}, pages = {567-596}, zbl = {0657.17004}, url = {http://dml.mathdoc.fr/item/GDZPPN002105306} }
Joseph, Anthony. A surjectivity theorem for rigid highest weight modules.. Inventiones mathematicae, Tome 93 (1988) pp. 567-596. http://gdmltest.u-ga.fr/item/GDZPPN002105306/