@article{701726,
title = {Nilpotent spacelike Jordan Osserman pseudo-Riemannian manifolds},
booktitle = {Proceedings of the 23rd Winter School "Geometry and Physics"},
series = {GDML\_Books},
publisher = {Circolo Matematico di Palermo},
address = {Palermo},
year = {2004},
pages = {[99]-105},
mrnumber = {MR2069398},
zbl = {1053.53018},
url = {http://dml.mathdoc.fr/item/701726}
}
Gilkey, P.; Nikčević, S. Nilpotent spacelike Jordan Osserman pseudo-Riemannian manifolds, dans Proceedings of the 23rd Winter School "Geometry and Physics", GDML_Books, (2004), pp. [99]-105. http://gdmltest.u-ga.fr/item/701726/