1. Design and implementation of a semantic search engine for Portuguese;C.Amaral;Proceedings of 4th International Conference on Language Resources and Evaluation, LREC 2004,2004
2. Burton-Jones, A., Storey, V. C., Sugumaran, V., & Purao, S. (2003). A heuristic-based methodology for semantic augmentation of user queries on the web, Conceptual Modeling – ER 2003, 22nd International Conference on Conceptual Modeling, Chicago, IL, USA, October 13–16, Proceedings, pp.476–489.
3. QuizRDF: search technology for the semantic Web
4. Dong, H., Hussain, F. K., & Chang, E. (2008) A Survey in Semantic Search Technologies, Proceedings of the Second IEEE International Conference on Digital Ecosystems and Technologies, DEST 2008, Phitsanulok, Thailand, 403-408.
5. Fellbaum, C. (Ed.). (1998). Wordnet: An Electronic Lexical Database, MIT Press, ISBN-10:0-262-06197-XISBN-13: 978-0-262-06197-1.