@article{CM_1980__40_1_35_0, author = {Joseph, A.}, title = {Towards the {Jantzen} conjecture}, journal = {Compositio Mathematica}, pages = {35--67}, publisher = {Sijthoff et Noordhoff International Publishers}, volume = {40}, number = {1}, year = {1980}, mrnumber = {558258}, zbl = {0424.17004}, language = {en}, url = {http://www.numdam.org/item/CM_1980__40_1_35_0/} }