The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Szewinski:IPAC2017-THPAB129}
\bibitem{Szewinski:IPAC2017-THPAB129}
J. Szewiński, A. Abramowicz, W. Cichalewski, K. Czuba, M. Gosk, Z. Gołębiewski, \emph{et al.},
% J. Szewiński, A. Abramowicz, W. Cichalewski, K. Czuba, M. Gosk, Z. Gołębiewski, M.G. Grzegrzolka, P. Krawczyk, I.M. Kudla, D.R. Makowski, A. Napieralski, and I. Rutkowski,
% J. Szewiński \emph{et al.},
\textquotedblleft{Contribution to the ESS LLRF System by Polish Electronic Group}\textquotedblright,
% in \emph{Proc. IPAC2017}, pp. 4026--4027,
% in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper THPAB129, pp. 4026--4027,
in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)},
Copenhagen, Denmark, May 2017, paper THPAB129, pp. 4026--4027,
% ISBN: 978-3-95450-182-3,
\url{http://jacow.org/ipac2017/papers/thpab129.pdf},
\url{https://doi.org/10.18429/JACoW-IPAC2017-THPAB129}, 2017.