1. V. L. Ginzburg and V. N. Tsytovich, Transition Radiation and Transition Scattering (Nauka, Moscow, 1984; Adam Hilger, Bristol, United Kingdom, 1990).
2. M. I. Ryazanov and I. S. Tilinin, Sov. Phys. JETP 44(6), 1092 (1976).
3. B. M. Bolotovskii and A. V. Serov, JETP Lett. 86(1), 6 (2007).
4. M. I. Ryazanov and A. N. Safronov, Laser Phys. 6, 708 (1996).
5. A. V. Serov and B. M. Bolotovskii, JETP 104(6), 866 (2007).