@book{81885,
	author = {Chab�as, Jos�e, and Goldstein, Bernard R. and ebrary, Inc.},
	title = {A survey of European astronomical tables in the late Middle Ages},
	publisher = {Brill,},
	year = {2012.},
	series = {Time, astronomy, and calendars,},
	address = {Leiden ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10569492}
}