@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/