1. More Is Different
2. At Home in the Universe: The Search for the Laws of Self-Organization and Complexity; Oxford University Press, 1995.
3. Sciences of the Artificial, 3rd Ed.; MIT Press, 1996; Chapter 7.
4. Dynamics of Complex Systems; Perseus Press, 1997; Section 0.5.
5. Emergence: From Chaos to Order; Helix Books, 1998.