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2. C. Reece, in: B. Rusnak (Ed.), Proceedings of the Nineth Workshop on RF Superconductivity Los Alamos National Laboratory, Los Alamos, NM, 2000, p. 605.
3. D. Trines, in: B. Rusnak (Ed.), Proceedings of the Nineth Workshop on RF Superconductivity Los Alamos National Laboratory, Los Alamos, NM, 2000, p. 605.
4. H. Padamsee, J. Knobloch, T. Hays, RF Superconductivity for Accelerators, Wiley, New York, 1998, and references therein.