@Inproceedings{rudolph2011eqfokb, author = "Sebastian Rudolph and Stephan Grimm and Anees ul Mehdi", booktitle = "Proceedings of the 8th Extended Semantic Web Conference", month = "Mai", organization = "8th Extended Semantic Web Conference (ESWC11)", publisher = "ESWC 2011", title = "Epistemic Queries for OWL Knowledge Bases", year = "2011", }