The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{dimitri:fel2019-thp010} \bibitem{dimitri:fel2019-thp010} S. Di Mitri, G. De Ninno, R. Fabris, S. Spampinati, and N. Thompson, \textquotedblleft{Simple and Robust Free Electron Laser Doubler}\textquotedblright, % --- abbreviated form (published paper) - JACoW template Feb 2018 --- in \emph{Proc. FEL'19}, Hamburg, Germany, Aug. 2019, pp. 609--612. \url{doi:10.18429/JACoW-FEL2019-THP010} % --- additional material -ISSN/ISBN-- % ISBN: 978-3-95450-210-3, ISSN: ""