@book{152064,
	author = {Madgearu, Alexandru. and ebrary, Inc.},
	title = {Byzantine military organization on the Danube, 10th-12th centuries},
	publisher = {Brill,},
	year = {2013.},
	address = {Leiden ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10725057}
}