1. Optimal filtering;B. D. O. Anderson,1979
2. Barry, A. M. (2002). The stability of long action chains in XCS. Journal of Soft Computing, 6(3–4), 183–199.
3. Lecture notes in computer science;A. Barry,2003
4. Barry, A., Holmes, J., & Llora, X. (2004). Data mining using learning classifier systems. In L. Bull (Ed.), Applications of learning classifier systems. Berlin: Springer.
5. Bernadó, E., Llorà, X., & Garrell, J. M. (2001). XCS and GALE: a comparative study of two learning classifier systems with six other learning algorithms on classification tasks. In Proceedings of the 4th international workshop on learning classifier systems (IWLCS-2001) (pp. 337–341).