@book{175650,
	author = {Nelson, Greg},
	title = {High frequency and microwave circuit design /},
	publisher = {CRC Press,},
	year = {1999.},
	address = {Boca Raton, FL :},
	url = {http://www.loc.gov/catdir/enhancements/fy0744/99040461-d.html}
}
