@book{559,
	author = {Ratcliff, Marc. and ebrary, Inc.},
	title = {The quest for the invisible},
	publisher = {Ashgate Pub. Limited,},
	year = {c2009.},
	address = {Farnham, England ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10288738}
}