?url_ver=Z39.88-2004&rft_id=10.1109%2FICIAS.2012.6306137&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=K.T.Y.&rft.aulast=Pynng&rft.au=Pynng%2C+K.T.Y.&rft.date=2012&rft.title=Microwave+planar+quasi-elliptic+dual+mode+filter&rft.isbn=9781457719677&rft.genre=proceeding