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L. M. Earley, B. E. Carlsten, M. V. Fazio, C. M. Fortgang, P. C. Haddock, and W. B. Haynes, “Annular-Beam, 17 GHz Free-Electron Maser Experiment”, in Proc. 17th Particle Accelerator Conf. (PAC'97), Vancouver, Canada, May 1997, paper 5P026, pp. 3135-3137. |
