Sofia Alexaki Vassilis Christophides Gregory Karvounarakis Dimitris Plexousakis Karsten Tolle The ICS-FORTH RDFSuite: Managing Voluminous RDF Description Bases. 2001 SemWeb http://CEUR-WS.org/Vol-40/alexakietal.pdf db/conf/semweb/semweb2001.html#AlexakiCKPT01