1. Back, T., Fogel, D. B., Michalewicz, Z. (Eds.) (1997). The Handbook of Evolutionary Computation, Oxford University Press, New York
2. Butz, M., Wilson, S. W. (2002). An algorithmic description of XCS. Soft Computing, 6(3–4), 144–153
3. De Jong, K. A., Spears, W. M., Gordon, D. F. (1993). Using genetic algorithms for concept learning. Machine Learning, 13, 161–188
4. ftp://ftp-illigal.ge.uiuc.edue/pub/src/XCS/XCS1.2.tar.Z
5. Goldberg, D. E. (1989). Genetic Algorithms in Search, Optimization, and Machine Learning, Addison Wesley, MA