@book{566442,
	author = {Chang, Kai, and Hsieh, Lung-Hwa.},
	title = {Microwave ring circuits and related structures /},
	publisher = {J. Wiley,},
	year = {c2004.},
	address = {Hoboken, N.J. :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/bios/wiley046/2003056885.html}
}