?url_ver=Z39.88-2004&rft_id=10.1109%2FICMTCE.2011.5915193&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Wong%2C+P.W.&rft.aulast=Wong&rft.aufirst=P.W.&rft.date=2011&rft.title=Miniaturized+stepped-impedance+dual-mode+resonator+filter&rft.isbn=9781424485574&rft.genre=proceeding