S. Angeletou, M. Sabou, и E. Motta. Proceedings of the Asian Semantic Web Conference, том 5926 из Lecture Notes in Computer Science, стр. 276-290. Springer, (2009)
S. Angeletou, M. Sabou, и E. Motta. Proceedings of the Extended Semantic Web Conference, том 5554 из Lecture Notes in Computer Science, стр. 801-805. Springer, (2009)