Articles I haven't been able to get my hands on:

1. "BUILDING URBAN MODELS WITH MULTI- CELLULAR AUTOMATA"
2. "Self-replicating and self-repairing multicellular automata"
3. "Rule-Based Simulation of Multi-Cellular Biological Systems"

External Links

• https://github.com/Polkm/cell-tycoon
• Dynamics of Multicellular Automata with Unbounded Memory (PDF)