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2. ASM-documentation, p. 16, http://www.swarm.org.
3. S. Wolfram, Statistical mechanics of cellular automata, http://www.stephenwolfram.com/publications/articles/ca/83-statistical/, 2000.
4. The general and logical theory of automata;Neumann,1951
5. Turbulent pattern bases for cellular automata;Crutchfield;Physica D,1993