The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Szymczyk:FEL2017-WEP021}
\bibitem{Szymczyk:FEL2017-WEP021}
K. Szymczyk, J.A. Lorkiewicz, R. Nietubyć, and J.K. Sekutowicz,
\textquotedblleft{Preliminary Results of the Dark Current Modelling for the Polfel Superconducting Lead Photocathode}\textquotedblright,
in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP021}, 2018.
% in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP021}, pp. 463--465.
% in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper WEP021, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP021}
% in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)},
% Santa Fe, NM, USA, Aug. 2017, paper WEP021, pp. 463--465,
% ISBN: 978-3-95450-179-3,
% \url{http://jacow.org/fel2017/papers/wep021.pdf},
% \url{https://doi.org/10.18429/JACoW-FEL2017-WEP021}, 2018.