@article{GDZPPN002332744,
title = {Quaternionic-K\"ahler manifolds and conforrmal geometry.},
journal = {Mathematische Annalen},
volume = {283},
year = {1989},
pages = {353-376},
zbl = {0674.53036},
url = {http://dml.mathdoc.fr/item/GDZPPN002332744}
}
LeBrun, Claude. Quaternionic-Kähler manifolds and conforrmal geometry.. Mathematische Annalen, Tome 283 (1989) pp. 353-376. http://gdmltest.u-ga.fr/item/GDZPPN002332744/