@article{GDZPPN002338904,
title = {Quaternionic geometry of a nilpotent variety.},
journal = {Mathematische Annalen},
volume = {295},
year = {1993},
pages = {747-764},
zbl = {0807.53040},
url = {http://dml.mathdoc.fr/item/GDZPPN002338904}
}
Swann, Andrew; Kobak, Piotr Z. Quaternionic geometry of a nilpotent variety.. Mathematische Annalen, Tome 295 (1993) pp. 747-764. http://gdmltest.u-ga.fr/item/GDZPPN002338904/