@Inproceedings{kroetzsch2008etrfo, author = "Markus Kr{\"o}tzsch and Sebastian Rudolph and Pascal Hitzler", booktitle = "Proceedings of the 7th International Semantic Web Conference (ISWC 2008)", editor = "Amit Sheth and Steffen Staab and Mike Dean and Massimo Paolucci and Diana Maynard and Timothy Finin and Krishnaprasad Thirunarayan", month = "Oktober", pages = "649-664", publisher = "Springer", series = "LNCS", title = "ELP: Tractable Rules for OWL 2", volume = "5318", year = "2008", }