Hyon Hee Kim Seung-Soo Park A Semantics-Based Versioning Scheme for Multimedia Data. 277-288 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2973&spage=277 2004 conf/dasfaa/2004 DASFAA db/conf/dasfaa/dasfaa2004.html#KimP04a