The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Wu:FEL2017-TUB04}
\bibitem{Wu:FEL2017-TUB04}
J. Wu, X. Huang, T.O. Raubenheimer, and A. Scheinker,
\textquotedblleft{Recent On-Line Taper Optimization on LCLS}\textquotedblright,
in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-TUB04}, 2018.
% in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-TUB04}, pp. 229--234.
% in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper TUB04, \url{https://doi.org/10.18429/JACoW-FEL2017-TUB04}
% in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)},
% Santa Fe, NM, USA, Aug. 2017, paper TUB04, pp. 229--234,
% ISBN: 978-3-95450-179-3,
% \url{http://jacow.org/fel2017/papers/tub04.pdf},
% \url{https://doi.org/10.18429/JACoW-FEL2017-TUB04}, 2018.