@book{49249,
	author = {St�urmer, Stefan. and ebrary, Inc.},
	title = {The psychology of prosocial behavior},
	publisher = {Wiley-Blackwell,},
	year = {2009.},
	address = {Malden, MA :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10343025}
}