The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Frey:IPAC2017-THPIK015}
\bibitem{Frey:IPAC2017-THPIK015}
M. Frey, D. Domont-Yankulova, K. Groß, J. Harzheim, P. Hülsmann, and H. Klingbeil,
\textquotedblleft{Prototype Results of the ESR Barrier-Bucket System}\textquotedblright,
% in \emph{Proc. IPAC2017}, pp. 4133--4135,
% in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper THPIK015, pp. 4133--4135,
in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)},
Copenhagen, Denmark, May 2017, paper THPIK015, pp. 4133--4135,
% ISBN: 978-3-95450-182-3,
\url{http://jacow.org/ipac2017/papers/thpik015.pdf},
\url{https://doi.org/10.18429/JACoW-IPAC2017-THPIK015}, 2017.