?url_ver=Z39.88-2004&rft_id=10.1109%2FRFM.2013.6757239&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Khalid%2C+S.&rft.aulast=Khalid&rft.aufirst=S.&rft.title=Design+of+highly+selective+ultra-wideband+bandpass+filter+using+multiple+resonance+resonator&rft.date=2013&rft.genre=proceeding