Panagiotis Pediaditis Giorgos Flouris Irini Fundulaki Vassilis Christophides On Explicit Provenance Management in RDF/S Graphs. 2009 Workshop on the Theory and Practice of Provenance http://www.usenix.org/events/tapp09/tech/full_papers/pediaditis/pediaditis.pdf conf/fast/2009tapp db/conf/fast/tapp2009.html#PediaditisFFC09