Enrico Appiani L. Boato S. Bruzzo Anna Maria Colla M. Davite D. Sciarra "STRETCH": A System for Document Storage and Retrieval by Content. 588-592 1999 DEXA Workshop http://computer.org/conferen/proceed/dexa/0281/02810588abs.htm db/conf/dexaw/dexaw99.html#AppianiBBCDS99