@book{175071,
	author = {Heldt, Benjamin. and ebrary, Inc.},
	title = {A healthy mix?},
	publisher = {Peter Lang GmbH, Internationaler Verlag der Wissenschaften,},
	year = {2012.},
	series = {European University studies. Series V, Economics and management ;},
	address = {Frankfurt :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10666065}
}