Haydemar Núñez Cecilio Angulo Andreu Català Rule Extraction Based on Support and Prototype Vectors. 109-134 2008 Rule Extraction from Support Vector Machines http://dx.doi.org/10.1007/978-3-540-75390-2_5 series/sci/2008-80 db/series/sci/sci80.html#NunezAC08