%\cite{Tibai:FEL2015-MOP071}
\bibitem{Tibai:FEL2015-MOP071}
    Z.~Tibai, G.~Almási, Zs.~Csiha-Nagy, J.A.~Fülöp, J.~Hebling, and Gy.~Tóth,
   \textquotedblleft{Carrier-Envelope-Phase Stable Linearly and Circularly Polarized Attosecond Pulse Sources}\textquotedblright,
%  in \emph{Proc. FEL2015}, MOP071, pp. 205--208,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper MOP071, pp. 205--208,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper MOP071, pp. 205--208,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop071.pdf},
    doi:10.18429/JACoW-FEL2015-MOP071, 2015.