The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Zimmermann:IPAC2015-TUPTY057}
\bibitem{Zimmermann:IPAC2015-TUPTY057}
F. Zimmermann, R. Aleksan, A. Apyan, and Y. Papaphilippou,
\textquotedblleft{Scenarios for Circular Gamma-Gamma Higgs Factories}\textquotedblright,
% --- abbreviated form (published paper) - JACoW template Feb 2018 ---
in \emph{Proc. IPAC'15}, Richmond, VA, USA, May 2015, pp. 2156--2159,
\url{doi:10.18429/JACoW-IPAC2015-TUPTY057}
% --- complete form (published paper) - JACoW template Feb 2018 ---
% in \emph{Proc. 6th International Particle Accelerator Conference (IPAC'15)}, Richmond, VA, USA, May 2015,
% pp. 2156--2159, \url{doi:10.18429/JACoW-IPAC2015-TUPTY057}
% --- additional material ---
% ISBN: 978-3-95450-168-7, \url{http://jacow.org/ipac2015/papers/tupty057.pdf}