@book{101829,
	author = {Bussmann, Uwe, and Schweighofer, Silvia,},
	title = {Group dynamics :},
	publisher = {Anchor Academic Publishing,},
	year = {2014.},
	series = {Compact},
	address = {Hamburg, Germany :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10856467}
}