The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Hu:IPAC2016-WEPOR040}
\bibitem{Hu:IPAC2016-WEPOR040}
J. Hu, J.H. Chang, J.S. Han, W.H. Hwang, H.-S. Kang, O.J. Kim, \emph{et al.},
% J. Hu, J.H. Chang, J.S. Han, W.H. Hwang, H.-S. Kang, O.J. Kim, Y.S. Kim, H.-S. Lee, H.S. Lee, C.-K. Min, and G. Mun,
% J. Hu \emph{et al.},
\textquotedblleft{LLRF Development for PAL-XFEL}\textquotedblright,
% in \emph{Proc. IPAC2016}, pp. 2761--2764,
% in \emph{Proc. IPAC2016}, Busan, Korea, May 2016, paper WEPOR040, pp. 2761--2764,
in \emph{Proc. 7th Int. Particle Accelerator Conf. (IPAC'16)},
Busan, Korea, May 2016, paper WEPOR040, pp. 2761--2764,
% ISBN: 978-3-95450-147-2,
\url{http://jacow.org/ipac2016/papers/wepor040.pdf},
\url{doi:10.18429/JACoW-IPAC2016-WEPOR040}, 2016.