@book{87631,
	author = {Ruef, Martin. and ebrary, Inc.},
	title = {The entrepreneurial group},
	publisher = {Princeton University Press,},
	year = {c2009.},
	series = {The Kauffman Foundation series on innovation and entrepreneurship},
	address = {Princeton :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10395109}
}