1. Berners-Lee, T, Hendler J, Lassila O Article Title: The Semantic Web
2. Noy NF, McGuinness DL (2001) Ontology development 101: a guide to creating your first ontology. Stanford Knowl Syst Lab 25 (2001)
3. Kondylakis H, Flouris G, Plexousakis D (2009) Ontology and schema evolution in data integration: review and assessment. In: Proceedings of the confederated international conferences, CoopIS, DOA, IS, and ODBASE 2009 on the move to meaningful internet systems: part II, pp 932–947
4. Informatics SM (2010) The Protégé Ontology Editor and Knowledge Acquisition System welcome to protég. Knowl Acquis 2010–2010
5. Protege, “protege,” Stanford Center for Biomedical Informatics Research at the Stanford University School of Medicine. https://protege.stanford.edu/