@article{01170991,
title = {Pseudo-Riemannian Osserman manifolds.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {2},
year = {1997},
pages = {1-12},
zbl = {0903.53019},
language = {en},
url = {http://dml.mathdoc.fr/item/01170991}
}
Blažić, Novica; Bokan, Neda; Gilkey, Peter; Rakić, Zoran. Pseudo-Riemannian Osserman manifolds.. Balkan Journal of Geometry and its Applications (BJGA), Tome 2 (1997) pp. 1-12. http://gdmltest.u-ga.fr/item/01170991/