1. Mackay, R. S. and Meiss, J. D., Hamiltonian Dynamical Systems. Adam Hilger (IOP), Bristol, 1987.
2. Kapitantiak, T., Chaotic Oscillators. World Scientific, Singapore, 1992.
3. Cvitanovic, P., Universality in Chaos. Adam Hilger, (IOP) Bristol, 1980.
4. Moon, F. C. Chaotic and Fractal Dynamics. John Wiley, New York, 1992.
5. Thompson, J. M. and Stewart, H. B., Nonlinear Dynamics and Chaos. John Wiley and Sons, New York, 1986.