1. J.L. Seftor, V.L. Granatstein, K.R. Chu, P. Sprangle and M.E. Read, IEEE J. Quantum Electronics, Vol. QE-15, pp. 848?853 (1979).
2. L.R. Barnett, K.R. Chu, J.M. Baird, V.L. Granatstein, and A.T. Drobot, IEDM Technical Digest, pp. 164?167 (Dec., 1979).
3. R.S. Symons, H.R. Jory, and S.T. Hegii, IEDM Technical Digest, pp. 676?679 (Dec. 1979).
4. Y.Y. Lau, K.R. Chu, L.R. Barnett and V.L. Granatstein, ?Gyrotron Travelling-Wave Amplifier: I. Analysis of Oscillations,? the preceeding paper in this issue.
5. R.J. Briggs,Electron Stream Interaction with Plasma, MIT Press, Cambridge, Mass. (1964).