1. R. J. Abraham and C. D. Shaw, Dynamics-The Geometry of Behavior, Part 1 (1982), Aerial Press, Santa Cruz, CA.
2. R. J. Abraham and C. D. Shaw, Dynamics-The Geometry of Behavior, Part 2 (1983), Aerial Press, Santa Cruz, CA.
3. R. J. Abraham and C. D. Shaw, Dynamics-The Geometry of Behavior, Part 3 (1985), Aerial Press, Santa Cruz, CA.
4. R. J. Abraham and C. D. Shaw, Dynamics-The Geometry of Behavior, Part 4 (1988), Aerial Press, Santa Cruz, CA.
5. M. F. Barnsley, Fractals Are Everywhere, Academic Press, Boston (1988).