@conference {simidat112, title = {Multi-Objective Genetic Fuzzy Systems: On the Necessity of Including Expert Knowledge in the MOEA Design Process}, booktitle = {Proceedings of the 2008 International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU)}, year = {2008}, month = {June}, pages = {1446-1453}, author = {M. J. Gacto and R. Alcal{\'a} and F. Herrera} }