The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Vilela:IPAC2017-WEPIK053} \bibitem{Vilela:IPAC2017-WEPIK053} L.N.P. Vilela, L. Liu, X.R. Resende, and F.H. de Sá, \textquotedblleft{Studies of Delta-Type Undulators for Sirius}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 3045--3047, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper WEPIK053, pp. 3045--3047, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper WEPIK053, pp. 3045--3047, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/wepik053.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-WEPIK053}, 2017.