Roberto Basili Marco Cammisa Emanuale Donati RitroveRAI: A Web Application for Semantic Indexing and Hyperlinking of Multimedia News. 97-111 2005 conf/semweb/2005 International Semantic Web Conference http://dx.doi.org/10.1007/11574620_10 db/conf/semweb/iswc2005.html#BasiliCD05