@article{GDZPPN002101335,
title = {The structure of standard modules. II. The case A1(1), principal gradation.},
journal = {Inventiones mathematicae},
volume = {82},
year = {1985},
pages = {417-442},
zbl = {0577.17010},
url = {http://dml.mathdoc.fr/item/GDZPPN002101335}
}
Lepowsky, James; Wilson, Robert Lee. The structure of standard modules. II. The case A1(1), principal gradation.. Inventiones mathematicae, Tome 82 (1985) pp. 417-442. http://gdmltest.u-ga.fr/item/GDZPPN002101335/