1. Saperstein, A. M. Nature 309, 303–305 (1984).
2. Schuster, H. G. Deterministic Chaos: An Introduction 2nd edn (VCH, Weinheim, 1987).
3. Bergé, P., Pomeau, Y. & Vidal, C. Order Within Chaos: Towards a Deterministic Approach to Turbulence (Wiley, New York, 1986).
4. Gleick, J. Chaos: Making a New Science (Viking, New York, 1987).
5. Haken, H. Synergetics: An Introduction (Springer, New York, 1977).