1. R. A. Kishek, Y. Y. Lau, L. K. Ang, et al., Phys. Plasmas 5, 2120 (1998).
2. V. A. Ivanov et al., Sci. and Technol. Center Plasma-iofan, (2000–2007); http://www.plasmaiofan.ru/edu/soderj.html .
3. V. Veshcherevich, I. Bazarov, and S. Belomestnykh, et al, in Proc. 2003 Particle Accelerator Conf., Portland, Oregon, May 12–16, 2003 (IEEE, Piscataway, NJ, 2003), p. 1201.
4. M. A. Gusarova, V. I. Kaminskii, L. V. Kravchuk, et al., in Proc. XX Int. Workshop on Charged Particle Accelerators, Ukraine, Alushta, Sept. 9–15, 2007 (Kharkov. Inst. Phys. Tekhnol., Kharkov, 2007), p. 123.
5. E. Haebel, A. Mosnier, J. Sekutowicz, et al., in Proc. 15th Int. Conf. on High Energy Accelerator (HEACC’92), Hamburg, Germany, July 20–24, 1992 (World Scientific, River Edge, N.J., 1993), Vol. 2, p. 957.