1. R. P. Feynman, R. B. Leighton, and M. Sands, The Feynman Lectures on Physics, Vol. 3: Quantum Mechanics (Addison-Wesley, Reading, MA, 1963).
2. I. V. Savel’ev, Course of General Physics, Vol. 2: Electricity and Magnetism. Waves. Optics (Lan’, St. Petersburg, 2005) [in Russian].
3. N. P. Kalashnikov, Coherent Interactions of Charged Particles in Single Crystals (Harwood Academic Publ., 1988).
4. V. N. Baier, V. M. Katkov, and V. M. Strakhovenko, Electromagnetic Processes in Single Crystals under High Energy (Nauka, Novosibirsk, 1989) [in Russian].
5. D. Perkins, Particle Astrophysics (Oxford Univ. Press, Oxford, 2003).