Florentino Fdez-Riverola Fernando Díaz Juan M. Corchado Applying Rough Sets Reduction Techniques to the Construction of a Fuzzy Rule Base for Case Based Reasoning. 83-92 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3315&spage=83 2004 conf/iberamia/2004 IBERAMIA db/conf/iberamia/iberamia2004.html#Fdez-RiverolaDC04