%\cite{Lee:IBIC2014-WETUB1}
\bibitem{Lee:IBIC2014-WETUB1}
    T.H.~Lee,
   \textquotedblleft{Dark Secrets of RF Design}\textquotedblright,
%  presented at IBIC2014, Monterey, CA, USA, paper WETUB1, not published,
%  presented at the 3rd Int. Beam Instrumentation Conf., Monterey, CA, USA, paper WETUB1, not published,
   presented at the 3rd International Beam Instrumentation Conference, Monterey, CA, USA, paper WETUB1, not published,
    2014.