The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Yang:SRF2015-MOPB036} \bibitem{Yang:SRF2015-MOPB036} Z.Q.~Yang, L.~Lin, X.Y.~Lu, W.W.~Tan, D.Y.~Yang, and J.~Zhao, \textquotedblleft{TOF-SIMS Study of Nitrogen Doping Niobium Samples}\textquotedblright, % in \emph{Proc. SRF2015}, MOPB036, pp. 169--173, % in \emph{Proc. SRF2015}, Whistler, BC, Canada, 13-18, 2015, paper MOPB036, pp. 169--173, in \emph{Proc. 17th International Conference on RF Superconductivity (SRF2015)}, Whistler, BC, Canada, 13-18, 2015, paper MOPB036, pp. 169--173, ISBN: 978-3-95450-178-6, \url{http://srf2015.vrws.de/papers/mopb036.pdf}, \url{doi:10.18429/JACoW-SRF2015-MOPB036}, 2015.