Young DA 1984 A local activator-inhibitor model of vertebrate skin patterns. Mathematical Biosciences, 72, 51–58.
which is itself a cellular automaton discretisation of Turing’s reaction-diffusion model of morphogenetics.
Turing AM 1952 The chemical basis of morphogenesis. Philosophical Transactions of the Royal Society of London. Series B, 237, 37–72
The reaction-diffusion model is a fundamental process model across many scientific domains.
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