A. Budanitsky, и G. Hirst. Workshop on WordNet and Other Lexical Resources, Second meeting of the North American Chapter of the Association for Computational Linguistics, Pittsburgh, USA, (2001)
B. Motik, A. Maedche, и R. Volz. Proc.\ First International Conference on Ontologies,
Databases and Application of Semantics
(ODBASE-2002), (октября 2002)
P. Ziegler, C. Kiefer, C. Sturm, K. Dittrich, и A. Bernstein. 10th International Conference on Extending Database Technology (EDBT 2006), том 3896 из Lecture Notes in Computer Science, стр. 59-76. Munich, Germany, March 26-31, Springer, (2006)