%\cite{Ok:IBIC2014-WEPF12}
\bibitem{Ok:IBIC2014-WEPF12}
    J.W.~Ok, J.~Bahng, S.~Choi, J.G.~Hong, S.J.~Kim, B.S.~Lee, J.Y.~Park, C.S.~Shin, M.~Won, and J.H.~Yoon,
%   J.W. Ok \emph{et al.},
   \textquotedblleft{A Diagnostics of Ion Beam from 28 GHz Electron Cyclotron Resonance Ion Source}\textquotedblright,
%  in \emph{Proc. IBIC2014}, Monterey, CA, USA, paper WEPF12, pp. 561--564,
%  in \emph{Proc. 3rd Int. Beam Instrumentation Conf.}, Monterey, CA, USA, paper WEPF12, pp. 561--564,
   in \emph{Proc. 3rd International Beam Instrumentation Conference}, Monterey, CA, USA, paper WEPF12, pp. 561--564,
    ISBN: 978-3-95450-141-0,
    \url{http://jacow.org/IBIC2014/papers/wepf12.pdf},
    2014.
