@article{02100140,
title = {QR-hypersurfaces of quaternionic K\"ahler manifolds.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {8},
year = {2003},
pages = {63-69},
zbl = {1059.53022},
language = {en},
url = {http://dml.mathdoc.fr/item/02100140}
}
Mangione, Vittorio. QR-hypersurfaces of quaternionic Kähler manifolds.. Balkan Journal of Geometry and its Applications (BJGA), Tome 8 (2003) pp. 63-69. http://gdmltest.u-ga.fr/item/02100140/