1. International Classification of Diseases (ICD), 10th Revision, Clinical Modification website. http://www.cdc.gov/nchs/icd/icd10cm.htm . Accessed 28 July 2015.
2. OWL Web Ontology Language. https://www.w3.org/TR/owl-features/ . Accessed 18 July 2016.
3. Sirin E, Parsia B, Cuenca Grau B, Kalyanpur A, Katz Y. Pellet: A Practical OWL-DL Reasoner. Web Semantics. 2007; 5(2):51–3.
4. Kazakov Y, Krötzsch M, Simancik F. ELK Reasoner: Architecture and Evaluation, In: Horrocks I, Yatskevich M, Jiménez-Ruiz E, editors. Proceedings of the 1st International Workshop on OWL Reasoner Evaluation (ORE-2012). CEUR Workshop Proceedings. Manchester, UK: CEUR-WS.org: 2012.
5. Motik B, Studer R. KAON2–A Scalable Reasoning Tool for the Semantic Web. In: Proceedings of the 2nd European Semantic Web Conference (ESWC’05). Berlin: Springer-Verlag: 2005.