@article{GDZPPN002113120,
title = {Picard-Lefschetz theory for the coadjoint quotient of a semisimple Lie algebra.},
journal = {Inventiones mathematicae},
volume = {121},
year = {1995},
pages = {531-578},
zbl = {0861.22008},
url = {http://dml.mathdoc.fr/item/GDZPPN002113120}
}
Rossmann, W. Picard-Lefschetz theory for the coadjoint quotient of a semisimple Lie algebra.. Inventiones mathematicae, Tome 121 (1995) pp. 531-578. http://gdmltest.u-ga.fr/item/GDZPPN002113120/