1. Allemang, D., Hendler, J.: Semantic Web for the Working Ontologist, 2nd edn. Morgan Kaufmann (2011)
2. Arp, R., Smith, B., Spear, AD.: Building Ontologies with Basic Formal Ontology, p. 248. MIT Press (2015). ISBN 978-0262527811
3. Baader, F., Calvanese, D., McGuinness, D.L., Nardi, D., Patel-Schneider, P.F. (eds.).: The Description Logic Handbook: Theory, Implementation, and Applications. Cambridge University Press, New York (2003)
4. Baeza-Yates, R., Ribeiro-Neto, B.: Modern Information Retrieval. ACM Press, Addison-Wesley, New York (1999)
5. Berners-Lee, T.: Weaving the Web. Harpur, San Francisco (1999)