@book{210104,
	author = {Hero, and Heiberg, J. L. and ebrary, Inc.},
	title = {Heronis Alexandrini Opera Quae Supersunt Omnia},
	publisher = {In Aedibus B.G. Teubneri,},
	year = {1976.},
	address = {Stutgardiae :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10591456}
}