ARTÍCULOS
J. A. Reyes, F. Esteva, J. Puyol-Guart (1998); Defining and combining Multiple-valued Logics for Knowledge-based Systems. Proceedings of the "Primer Congrés Català d'Intel.ligència Artificial (CCIA'98)", Tarragona, Spain, October 21-23, pp.30-38.

J. A. Reyes, F. Esteva, J. Puyol-Gruart (1999); Theory and Application of Multiple-Valued Logics for Knowledge-Based Systems. Proceedings of the Eusflat-Estylf Joint Conference, Palma de Mallorca, Spain, September 22-25, pp. 299-302.

L. C. Molina, S. Oliveira, M. C. Monard, C. Wellington, J. A. Reyes (1999); Transforming a regression problem into a classification problem using hybrid discretization. Proceedings of the "2n Congrés Català d'Intel.ligència Artificial" (CCIA'99), Girona, Spain, October 25-27, pp. 136-145.

J.M. Frias, A. Mora, I. P. Guzmán, J. Agustí, J.A. Reyes (1999); Modelización lógica de sistemas en la industria cárnica. Proceedings of the "2n Congrés Català d'Intel.ligència Artificial" (CCIA'99), Girona, Spain, October 25-27, pp. 316-322.

M. Enciso, J.M. Frias, A. Mora, J.A. Reyes (1999); Sistema de Autocontrol Lógico y Comprobación de Incidencias aplicado a la Industria Cárnica. Proceedings of the "3as Jornadas de Transferencia Tecnológica de Inteligencia Artificial" (CAEPIA-TTIA). UM, Murcia, Spain , November 16-19.

J. A. Reyes, F. Esteva, J. Puyol-Gruart (2001); On Defining Multiple-Valued Logics for Knowledge-Based Systems Communication. Mathware and Soft Computing, Vol. VII, n. 2-3, pp. 199-212.