1. Lecture Notes in Computer Science;O.C. Acosta,2009
2. Agirre, E., Edmonds, P.G. (eds.): Word Sense Disambiguation: algorithms and applications. Springer, Heidelberg (2006)
3. Lecture Notes in Computer Science;P. Basile,2009
4. Fellbaum, C. (ed.): WordNet. An Electronic Lexical Database. MIT Press, Cambridge (1998)
5. Gonzalo, J., Peñas, A., Verdejo, F.: Lexical ambiguity and information retrieval revisited. In: Proc. Joint SIGDAT Conference on Empirical Methods in Natural Language Processing and Very Large Corpora (EMNLP/VLC 1999), Maryland (1999)