H. Kim, A. Passant, J. Breslin, S. Scerri, and S. Decker. Proceedings of the 2nd IEEE International Conference on Semantic Computing, 0, page 315-322. Los Alamitos, CA, USA, IEEE Computer Society, (August 2008)
A. Monnin, F. Limpens, F. Gandon, and D. Laniado. I-SEMANTICS '10: Proceedings of the 6th International Conference on Semantic Systems, page 1--10. New York, NY, USA, ACM, (2010)