The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Checchin:SRF2017-TUYAA03}
\bibitem{Checchin:SRF2017-TUYAA03}
M. Checchin, A. Grassellino, M. Martinello, and A. Romanenko,
\textquotedblleft{Electron Mean Free Path Dependence of the Vortex Surface Impedance}\textquotedblright,
presented at SRF2017, Lanzhou, China, July 2017, paper TUYAA03, unpublished.
% presented at the 18th Int. Conf. on RF Superconductivity (SRF'17), Lanzhou, China, July 2017, paper TUYAA03, unpublished.