@inbook {Cdg13, title = {Applying Subgroup Discovery Based on Evolutionary Fuzzy Systems for Web Usage Mining in E-Commerce: A Case Study on OrOliveSur.com}, booktitle = {Foundations and Applications of Intelligent Systems}, year = {2013}, note = {TIN2008-06681-C06-02,TIC-3928,UJA2010/13/07}, pages = {591-602}, isbn = {978-3-642-37828-7}, author = {C. J. Carmona and M. J. del Jesus}, editor = {F. Sun and T. Li and H. Li} }