1. Lecture Notes in Computer Science;Y.-J. Hu,2009
2. Michael, K., Harold, B. (eds.): RIF Overview, http://www.w3.org/2005/rules/wiki/Overview
3. Boley, H., Tabet, S., Wagner, G.: Design Rationale of RuleML: A Markup Language for Semantic Web Rules. In: Proc. SWWS 2001, Stanford (July/August 2001)
4. Li, J.: Rule-Based Social Networking for Expert Finding. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Computer Scienc In The Graduate Academic Unit of Computer Science (2004)
5. Mei, J., Bontas, P.: Reasoning Paradigms for OWL Ontologies. Techn. Report, Germany (2004)