@book{227279,
	author = {Classen, Albrecht. and ebrary, Inc.},
	title = {Friendship in the Middle Ages and early modern age},
	publisher = {Walter de Gruyter,},
	year = {c2010.},
	series = {Fundamentals of medieval and early modern culture,},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10486483}
}