1. R. K. Dodd, J. C. Eilbeck, J. Gibbon, and H. C. Morris, Solitons and Nonlinear Wave Equations (Academic, New York, 1984).
2. V. I. Petviashvili and O. A. Pokhotelov, Solitary Waves in Plasmas and the Atmosphere (Energoatomizdat, Moscow, 1989) [in Russian].
3. V. G. Makhan’kov, “Solitons and numerical experiment,” Sov. J. Part. Nucl. 14, 50–75 (1983).
4. T. I. Belova and A. E. Kudryavtsev, “Solitons and their interactions in classical field theory,” Usp. Fiz. Nauk 167 (4), 377–406 (1997).
5. V. E. Zakharov, “On the stochastization of one-dimensional chains of nonlinear oscillators,” Zh. Eksp. Teor. Fiz. 65 (1(7)), 219–225 (1973).