1. ANZLIC (2007), “ANZLIC – the spatial information council”, available at: www.anzlic.org.au/ (accessed 7 September 2007).
2. Bermudez, L. (2004), “ONTOMET: ontology metadata framework”, PhD thesis, Drexel University, Philadelphia, PA.
3. Calvanese, D., de Giacomo, G. and Lenzerini, M. (2001), “Ontology of integration and integration of ontologies”, Proceedings of the Ninth International Conference on Conceptual Structures (ICCS'01), Stanford, CA, USA, 30 July‐3 August.
4. Cimiano, P. and Völker, J. (2005), “Text2Onto – a framework for ontology learning and data‐driven change discovery”, Proceedings of the 10th International Conference on Applications of Natural Language to Information Systems (NLDB'2005), Alicante, Spain, 15‐17 June, pp. 227‐38, available at: http://sourceforge.net/projects/texttoonto/ (accessed 20 December 2006).
5. Cranefield, S. (2001), “Networked knowledge representation and exchange using UML and RDF”, Journal of Digital Information, Vol. 1 No. 8, available at: http://journals.tdl.org/jodi/article/view/jodi‐34/31 (accessed 25 October 2007).