@book{689,
	author = {Kraus, John D. and Marhefka, Ronald J.},
	title = {Antennas /},
	publisher = {McGraw-Hill Education Singapore,},
	year = {2001.},
	address = {[S.l.] :},
	edition = {3rd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/007123201X/chopaconline-20}
}