@article{1138847519,
author = {Eum, Sang-seup and Pak, Jin Suk},
title = {Some characterizations of quaternionic Kaehlerian manifolds with constant $Q$-sectional curvature},
journal = {Kodai Math. Sem. Rep.},
volume = {29},
number = {1-2},
year = {1977},
pages = { 381-389},
language = {en},
url = {http://dml.mathdoc.fr/item/1138847519}
}
Eum, Sang-seup; Pak, Jin Suk. Some characterizations of quaternionic Kaehlerian manifolds with constant $Q$-sectional curvature. Kodai Math. Sem. Rep., Tome 29 (1977) no. 1-2, pp. 381-389. http://gdmltest.u-ga.fr/item/1138847519/