Reinhard Pichler Axel Polleres Sebastian Skritek Stefan Woltran Redundancy Elimination on RDF Graphs in the Presence of Rules, Constraints, and Queries. 133-148 2010 RR http://dx.doi.org/10.1007/978-3-642-15918-3_11 conf/rr/2010 db/conf/rr/rr2010.html#PichlerPSW10