?url_ver=Z39.88-2004&rft_id=10.1109%2FTAP.2004.824008&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=P.K.&rft.aulast=Singhal&rft.au=Singhal%2C+P.K.&rft.issue=1&rft.volume=52&rft.issn=0018926X&rft.atitle=Comments+on+%22modified+relation+for+path+length+error+of+Gagnon's+refracting+microwave+lens%22&rft.pages=349&rft.title=IEEE+Transactions+on+Antennas+and+Propagation&rft.date=2004&rft.genre=article