1. Akhmanov, S.A., Vysloukh, V.A., and Chirkin, A.S., Optika femtosekundnykh lazernykh impul’sov (Optics of Femtosecond Laser Pulses), Moscow: Nauka, 1988.
2. Hasegawa, A., Optical Solitons in Fibers, Berlin: Springer, 1989.
3. Rosanov, N.N., Prog. Opt., 1996, vol. 35, p. 1.
4. Akhmediev, N.N. and Ankiewicz, A., Nonlinear Pulses and Beams, New York: Springer, 1997.
5. Agrawal, G.P., Nonlinear Fiber Optics, Berlin: Springer, 2000.