@book{107520,
	author = {Behrens, Thorsten. and ebrary, Inc.},
	title = {Cisco Pix firewalls},
	publisher = {Syngress Publishing,},
	year = {2005.},
	address = {Rockland, MA :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10110288}
}