1. P. Cvitanovic (ed.): Universality in Chaos (Adam Hilger, Bristol 1985);
2. B.-L. Hao (ed.): Chaos (World Scientific, Singapore 1984)
3. B.B. Mandelbrot: The Fractal Geometry of Nature (Freeman, New York 1982)
4. J.-P. Eckmann, D. Ruelle: Rev. Mod. Phys. 57, 617 (1985); for related topics, see [4.47–49]
5. C.I.M.E. Lectures;OE Lanford,1976