1. OilEd: a reason-able ontology editor for the semantic web;Bechhofer,2001
2. OWL pizzas: practical experience of teaching OWL DL—common errors & common patterns;Rector,2004
3. Ontology learning;Cimiano,2009
4. Acquisition of OWL DL axioms from lexical resources;Völker,2007
5. Learning of OWL class descriptions on very large knowledge bases;Hellmann;Int. J. Semant. Web Inform. Syst.,2009