Hyvönen, E., A. Valo, V. Komulainen, K. Seppälä, T. Kauppinen, T. Ruotsalo, M. Salminen, and A. Ylisalmi. “Finnish National Ontologies for the Semantic Web -- Towards a Content and Service Infrastructure”. International Conference on Dublin Core and Metadata Applications, Sept. 2005, pp. pp. 219-222, https://dcpapers-past.dublincore.org/pubs/article/view/827.