1. J. S. Nicolis:Chaos and Information Processes (World Scientific Publishers, Singapore, 1989), in preparation.
2. C. H. Bennett: inEmerging Synthesis in Science, edited byD. Pines (Addison-Wesley, New York, N. Y., 1988).
3. H.-O. Peitgen andP. H. Richter:The Beauty of Fractals (Springer-Verlag, Berlin, 1986).