1. Bechhofer S, van Harmelen F, Hendler J, Horrocks I, Patel-Schneider PF, McGuinness D, Stein L (2004) OWL Web Ontology Language.
http://www.w3.org/TR/owl-ref/
2. Bos J (2008) Wide-coverage semantic analysis with boxer. In: Proceedings of the 2008 conference on semantics in text processing, STEP ’08. Association for Computational Linguistics, Stroudsburg, PA, USA, pp 277–286
3. Bos J (2015) Open-domain semantic parsing with boxer. In: Proceedings of the 20th Nordic conference of computational linguistics, NODALIDA 2015, May 11–13, 2015, Institute of the Lithuanian Language, Vilnius, Lithuania, pp 301–304
4. Buitelaar P, Cimiano P, Racioppa S, Siegel M (2006) Ontology-based information extraction with SOBA. In: Proceedings of the international conference on language resources and evaluation (LREC). ELRA, pp 2321–2324
5. Carlson A, Betteridge J, Hruschka ER, M., M.T (2009) Coupling semi-supervised learning of categories and relations. In: Proceedings of the NAACL HLT 2009 workshop on semi-supervised learning for natural language processing (SemiSupLearn), pp 1–9