Domenico Beneventano Claudio Gennaro Francesco Guerra A Methodology for Building and Querying an Ontology representing Data and Multimedia Sources. 37-40 2008 ODBIS http://www.vldb.org/conf/2008/workshops/WProc_ODBIS/paper_5.pdf conf/odbis/2008 db/conf/odbis/odbis2008.html#BeneventanoGG08