1. H. Ashcroft and N. Mermin, Solid State Physics (Holt, Rinehart and Winston, New York, 1976; Mir, Moscow, 1979).
2. Xiuping Tao, D. P. Landau, T. C. Schulthess, and G. M. Stocks, Phys. Rev. Lett. 95, 087207 (2005).
3. L. S. Kuz’menkov, S. G. Maksimov, and V. V. Fedoseev, Vestn. Mosk. Univ., Ser. 3: Fiz., Astron., No. 5, 3 (2000) (Moscow Univ. Phys. Bull., No. 5, 1 (2000)].
4. L. S. Kuz’menkov and D. E. Kharabadze, Izv. Vyssh. Uchebn. Zaved., No. 4, 87 (2004).
5. N. E. Kim and P. A. Polyakov, in Proceedings of the International Conference on the Wave Transformation, Coherent Structures, and Turbulence, November 23–25, Moscow, 2004, p. 61.