1. Arthur WB (1990) A Learning Algorithm that Replicates Human Learning. Technical Report 90–026, Santa Fe Institute.
2. Bell, MC and Bretherton, RD (1986) Ageing of fixed-time traffic signal plans. Proceedings of the Second IEE Conference on Road Traffic Control. London: IEE.
3. Bull L (1998) On ZCS in Multi-Agent Environments. In AE Eiben, T Baeck, M Schoenauer and H-P Schwefel (eds) Parallel Problem Solving from Nature–PPSN V, Springer Verlag, 471–80.
4. Bull L (1999) On using ZCS in a Simulated Continuous Double-Auction Market. In W Banzhaf, J Daida, AE Eiben, MH Garzon, V Honavar, M Jakiela and RE Smith (eds) GECCO-99: Proceedings of the Genetic and Evolutionary Computation Conference. Morgan Kaufmann, 83–90
5. Bull L and Hurst J (2002) ZCS Redux. Evolutionary Computation 10 (2), 185–205.