Humberto Sossa Antonio Villasenor Juan L. Olguin Francisco A. Toscano SISREC: A System for Image Retrieval. 96-100 2003 conf/enc/2003 ENC http://doi.ieeecomputersociety.org/10.1109/ENC.2003.1232881 db/conf/enc/enc2003.html#SossaVOT03