?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=A.A.&rft.au=Bakhit%2C+A.A.&rft.aulast=Bakhit&rft.date=2013&rft.title=Switchable+band-stop+to+all+pass+filter+using+stepped+impedance+resonator&rft.isbn=9781934142264&rft.issn=15599450&rft.genre=proceeding