1. Watson, D., Grow, R., and Johnson, C., J. Microwave Power., 1970, vol. 5, no. 2, p. 72.
2. Peklevskii, A.V. and Savvin, V.L., Izv. Ross. Akad. Nauk, Ser. Fiz., 1999, vol. 63, no. 12, p. 2368.
3. Savvin, V.L., Peklevskii, A.V., Kazaryan, G.M., et al., Izv. Ross. Akad. Nauk, Ser. Fiz., 2001, vol. 65, no. 12, p. 1695.
4. Peklevskii, A.V. and Savvin, V.L., Izv. Ross. Akad. Nauk, Ser. Fiz., 2008, vol. 72, no. 1, p. 139.
5. Zaitsev, A.A., Problems of Efficiency of Interaction of Electron Beam Transverse Waves with Electromagnetic Fields, Cand. Sci. (Phys-Math.) Dissertation, Moscow: MGU, 1979.