@book{37279,
	author = {Hieke, Alexander. and Leitgeb, Hannes. and ebrary, Inc.},
	title = {Reduction, abstraction, analysis},
	publisher = {Ontos Verlag,},
	year = {2009.},
	address = {Frankfurt :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10728676}
}