The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Filippi:IPAC2017-TUPIK023}
\bibitem{Filippi:IPAC2017-TUPIK023}
F. Filippi, M.P. Anania, A. Biagioni, E. Brentegani, E. Chiadroni, A. Cianchi, \emph{et al.},
% F. Filippi, M.P. Anania, A. Biagioni, E. Brentegani, E. Chiadroni, A. Cianchi, M. Ferrario, R. Pompili, S. Romeo, and A. Zigler,
% F. Filippi \emph{et al.},
\textquotedblleft{Gas-filled Capillaries for Plasma-Based Accelerators}\textquotedblright,
% in \emph{Proc. IPAC2017}, pp. 1731--1733,
% in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper TUPIK023, pp. 1731--1733,
in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)},
Copenhagen, Denmark, May 2017, paper TUPIK023, pp. 1731--1733,
% ISBN: 978-3-95450-182-3,
\url{http://jacow.org/ipac2017/papers/tupik023.pdf},
\url{https://doi.org/10.18429/JACoW-IPAC2017-TUPIK023}, 2017.