M.  Niarou and Stamou, S., ?Exploring lexicographic ontologies for hierarchically organizing the greek wikipedia articles?, Journal of Digital Information Management, vol. 10, no. 3, pp. 157 - 167, 2012.

G.  Semeraro, ?Personalized searching by learning wordnet-based user profiles?, Journal of Digital Information Management, vol. 5, no. 5, pp. 309 - 322, 2007.

V.  Sná?el, Moravec, P., and Pokorný, J., ?Using BFA with wordnet based model for web retrieval?, Journal of Digital Information Management, vol. 4, no. 2, pp. 107 - 111, 2006.

E. G. M.  Petrakis, Varelas, G., Hliaoutakis, A., and Raftopoulou, P., ?X-Similarity: Computing Semantic Similarity between concepts from different ontologies?, Journal of Digital Information Management, vol. 4, no. 4, pp. 233 - 237, 2006.