1. G. G. Agrawal, Nonlinear Fiber Optics (Academic, San Diego, 1995; Mir, Moscow, 1996).
2. N. N. Akhmediev and A. Ankevich, Solitons: Nonlinear Pulses and Beams (Fizmatlit, Moscow, 2003) [in Russian].
3. E. M. Dianov, Kvantovaya Élektron. (Moscow) 30(8), 659 (2000).
4. J. D. Moores, Opt. Lett. 21(2), 555 (1996).
5. A. Hasegawa, Massive WDM and TDM Soliton Transmission Systems (Kluwer, Dordrecht, 2000).