%\cite{Suga:FEL2015-FRA01}
\bibitem{Suga:FEL2015-FRA01}
    M.~Suga, H.~Ago, F.~Akita, K.~Hirata, H.~Murakami, Y.~Nakajima, \emph{et al.},
%   M. Suga \emph{et al.},
   \textquotedblleft{Radiation Damage Free Structure of Photosystem II at 1.95A Resolution}\textquotedblright,
%  presented at FEL2015, Daejeon, Republic of Korea, August 2015, paper FRA01, unpublished.
   presented at the 37th International Free Electron Laser Conference (FEL2015), Daejeon, Republic of Korea, August 2015, paper FRA01, unpublished.