@book{108145,
	author = {Gilkey, Peter B. and ebrary, Inc.},
	title = {The geometry of curvature homogeneous pseudo-Riemannian manifolds},
	publisher = {Imperial College Press ;},
	year = {c2007.},
	series = {ICP advanced texts in mathematics ;},
	address = {London :},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10188778}
}