The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Trenikhina:SRF2015-MOPB055} \bibitem{Trenikhina:SRF2015-MOPB055} Y.~Trenikhina, A.~Grassellino, O.S.~Melnychuk, and A.~Romanenko, \textquotedblleft{Characterization of Nitrogen Doping Recipes for the Nb SRF Cavities}\textquotedblright, % in \emph{Proc. SRF2015}, MOPB055, pp. 223--227, % in \emph{Proc. SRF2015}, Whistler, BC, Canada, 13-18, 2015, paper MOPB055, pp. 223--227, in \emph{Proc. 17th International Conference on RF Superconductivity (SRF2015)}, Whistler, BC, Canada, 13-18, 2015, paper MOPB055, pp. 223--227, ISBN: 978-3-95450-178-6, \url{http://srf2015.vrws.de/papers/mopb055.pdf}, \url{doi:10.18429/JACoW-SRF2015-MOPB055}, 2015.