@book{231585,
	author = {Ule, Alja�z. and ebrary, Inc.},
	title = {Partner choice and cooperation in networks},
	publisher = {Springer,},
	year = {2008.},
	series = {Lecture notes in economics and mathematical systems ;},
	address = {Berlin :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10217388}
}