1. Blocks, D.: A qualitative analysis of thesaurus integration for end-user searching. PhD thesis, University of Glamorgan, Hypermedia Research Unit, School of Computing, UK (2004)
2. Borst, P., Akkermans, J.M., Top, J.: Engineering ontologies. Int. J. Human-Computer Studies 46, 365–406 (1997)
3. Gazendam, L., Malaisé, V., Schreiber, G., Brugman, H.: Deriving semantic annotations of an audiovisual program from contextual texts. In: Semantic Web Annotation of Multimedia (SWAMM 2006) workshop, held in conjunction with WWW 2006, Edinburgh, UK (2006)
4. Frontiers in Artificial Intelligence and Applications;S. Handschuh,2003
5. Hollink, L., Schreiber, A.T., Wielemaker, J., Wielinga, B.J.: Semantic annotation of image collections. In: Handschuh, S., Koivunen, M., Dieng, R., Staab, S. (eds.) Knowledge Capture 2003 – Proceedings Knowledge Markup and Semantic Annotation Workshop, pp. 41–48 (2003)