1. Guizzardi, G.: Ontological Foundations for Structural Conceptual Models, pp. 1381–3617. Universal Press, Holanda (2005) ISBN 1381-3617
2. Guizzardi, G., Lopes, M., Baião, F., Falbo, R.: On the importance of truly ontological representation languages. In: IJISMD (2010) ISSN 1947–8186
3. Gonçalves, B., Guizzardi, G., Pereira Filho, J.G.: Using an ECG reference ontology for semantic interoperability of ECG data. Journal of Biomedical Informatics 43 (2010)
4. Bauman, B.T.: Prying Apart Semantics and Implementation: Generating XML Schemata directly from ontologically sound conceptual models. In: Balisage Markup Conf. (2009)
5. Halpin, T., Morgan, T.: Information Modeling and Relational Dababases. Morgan Kaufman, San Francisco (2008) ISBN 1558606726