@article{GDZPPN002100207,
title = {The invariant holonomic system on a semisimple Lie algebra.},
journal = {Inventiones mathematicae},
volume = {75},
year = {1984},
pages = {327-358},
zbl = {0538.22013},
url = {http://dml.mathdoc.fr/item/GDZPPN002100207}
}
Hotta, R.; Kashiwara, M. The invariant holonomic system on a semisimple Lie algebra.. Inventiones mathematicae, Tome 75 (1984) pp. 327-358. http://gdmltest.u-ga.fr/item/GDZPPN002100207/