The ICS-FORTH SWIM: A Powerful Semantic Web Integration Middleware. - Vassilis Christophides; Gregory Karvounarakis; Ioanna Koffina; Giorgos Kokkinidis; Aimilia Magkanaraki; Dimitris Plexousakis; Giorgos Serfiotis; Val Tannen (SWDB, 2003)

Semantic Query Routing and Processing in P2P Database Systems: The ICS-FORTH SQPeer Middleware. - Giorgos Kokkinidis; Vassilis Christophides (EDBT Workshops, 2004)

Report on the Workshop on Metadata Management in Grid and Peer-to-Peer Systems, London, December 16, 2003. - Kevin Keenoy; Alexandra Poulovassilis; Vassilis Christophides; George Loizou; Giorgos Kokkinidis; George Samaras; Nicolas Spyratos (SIGMOD Rec., 2004)

Query Processing in RDF/S-Based P2P Database Systems. - George Kokkinidis; Lefteris Sidirourgos; Vassilis Christophides (Semantic Web and Peer-to-Peer, 2006)

Indexing views to route queries in a PDMS. - Lefteris Sidirourgos; Giorgos Kokkinidis; Theodore Dalamagas 001; Vassilis Christophides; Timos K. Sellis (Distributed Parallel Databases, 2008)