The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Hosaka:IPAC2016-WEOAA03}
\bibitem{Hosaka:IPAC2016-WEOAA03}
M. Hosaka, M. Katoh, T. Konomi, K. Kuroda, N.S. Mirian, K. Miyamoto, \emph{et al.},
% M. Hosaka, M. Katoh, T. Konomi, K. Kuroda, N.S. Mirian, K. Miyamoto, S. Sasaki, and N. Yamamoto,
% M. Hosaka \emph{et al.},
\textquotedblleft{Experimental Study on Optical Vortex from a Helical Undulator at UVSOR-III}\textquotedblright,
% in \emph{Proc. IPAC2016}, pp. 2036--2038,
% in \emph{Proc. IPAC2016}, Busan, Korea, Mar. 2016, paper WEOAA03, pp. 2036--2038,
in \emph{Proc. 7th International Particle Accelerator Conference (IPAC'16)},
Busan, Korea, Mar. 2016, paper WEOAA03, pp. 2036--2038,
% ISBN: 978-3-95450-147-2,
\url{http://jacow.org/ipac2016/papers/weoaa03.pdf},
\url{doi:10.18429/JACoW-IPAC2016-WEOAA03}, 2016.