1. M. A. Kumakhov, Radiation by Channeled Particles in Crystals (Énergoatomizdat, Moscow, 1986).
2. V. G. Baryshevskii, Channeling, Radiation, and Reactions at High Energies (Belarus. Gos. Univ., Minsk, 1982).
3. V. A. Bazylev and N. K. Zhevago, Radiation from Fast Particles in Matter and External Fields (Nauka, Moscow, 1987).
4. L. A. Gevorkyan and N. A. Korkhmazyan, Dokl. Akad. Nauk SSSR 273, 849 (1983) [Sov. Phys. Dokl. 28, 1026 (1983)].
5. V. I. Vysotskii, R. N. Kuz’min, and N. V. Moksyuta, Zh. Éksp. Teor. Fiz. 93(12), 2015 (1987) [Sov. Phys. JETP 66, 1150 (1987)].