1. V. S. Chernysh, A. S. Patrakeev, E. S. Soldatov, D. V. Petrov, and S. V. Alyshev, J. Surf. Invest. 1, 717 (2007).
2. E. L. Zhavzharov and V. M. Matyushin, Poverkhnost’, No. 12, 36 (2004).
3. K. Oura, V. G. Lifshits, A. A. Saranin, A. V. Zotov, and M. Katayama, Surface Science: An Introduction (Springer, New York, 2003; Nauka, Moscow, 2006).
4. A. A. Sokolov, I. M. Ternov, and V. Ch. Zhukovskii, Quantum Mechanics (Nauka, Moscow, 1979; Mir, Moscow, 1984).
5. Ch. Kittel’, Introduction to Solid State Physics (Wiley, Chapman Hall, London, New York, 1953).