1. Quillian, M.R.: Word concepts: a theory and simulation of some basic semantic capabilities. Behav. Sci. 12, 410–430 (1967)
2. World Wide Web Consortium (W3C): RDF 1.1 concepts and abstract syntax (2014)
3. World Wide Web Consortium (W3C): OWL 2 Web Ontology Language document overview, 2nd edn. (2012)
4. International Handbooks on Information Systems;G Antoniou,2004
5. Horrocks, I.: DAML+OIL: a description logic for the semantic web. Bull. Tech. Committee Data Eng. 25, 4–9 (2002)