@book{52523,
	author = {Trim, D. J. B. and ebrary, Inc.},
	title = {The chivalric ethos and the development of military professionalism},
	publisher = {Brill,},
	year = {2003.},
	series = {History of warfare,},
	address = {Leiden ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10089093}
}