The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Gupta:NAPAC2016-WEPOB32}
\bibitem{Gupta:NAPAC2016-WEPOB32}
L. Gupta, K.-J. Kim, and R.R. Lindberg,
\textquotedblleft{Performance of a Combined System Using an X-Ray FEL Oscillator and a High-Gain FEL Amplifier}\textquotedblright,
% in \emph{Proc. NAPAC2016}, pp. 974--976,
% in \emph{Proc. NAPAC2016}, Chicago, IL, USA, Oct. 2016, paper WEPOB32, pp. 974--976,
in \emph{Proc. North American Particle Accelerator Conf. (NAPAC'16)},
Chicago, IL, USA, Oct. 2016, paper WEPOB32, pp. 974--976,
% ISBN: 978-3-95450-180-9,
\url{https://jacow.org/napac2016/papers/wepob32.pdf},
\url{https://doi.org/10.18429/JACoW-NAPAC2016-WEPOB32}, 2017.