1. V. S. Anishchenko, T. E. Vadivasova, and V. V. Astakhov, Nonlinear Dynamics of Chaotic and Stochastic Systems (Sarat. Gos. Univ., Saratov, 1999) [in Russian].
2. A. S. Pikovsky, M. G. Rosenblum, and J. Kurths, Synchronization: A Universal Concept in Nonlinear Science (Cambridge University Press, Cambridge, 2003; Tekhnosfera, Moscow, 2003).
3. A. S. Dmitriev, Applied Dynamic Chaos: Lecture Course (Yaroslav. Gos. Univ., Yaroslavl, 2000) [in Russian].
4. A. S. Dmitriev and A. I. Panas, Dynamic Chaos: New Media for Communication Systems (Fizmatlit, Moscow, 2002) [in Russian].
5. Yu. G. Tratas, J. Commun. Technol. Electron. 42, 424 (1997).