@book{49502,
	author = {Blackburn, J. Lewis. and Domin, Thomas J.},
	title = {Protective relaying :},
	publisher = {CRC Press,},
	year = {c2007},
	series = {Power engineering ;},
	address = {Boca Raton, FL :},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0619/2006025111.html}
}