Erietta Liarou Stratos Idreos Manolis Koubarakis Evaluating Conjunctive Triple Pattern Queries over Large Structured Overlay Networks. 399-413 2006 conf/semweb/2006 International Semantic Web Conference http://dx.doi.org/10.1007/11926078_29 db/conf/semweb/iswc2006.html#LiarouIK06