@book{12588,
	author = {Hooft, G. 't. and ebrary, Inc.},
	title = {Playing with planets},
	publisher = {World Scientific,},
	year = {c2008.},
	address = {Hackensack, NJ :},
	edition = {English ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10688050}
}