L. Ma, Y. Yang, Z. Qiu, G. Xie, Y. Pan, и S. Liu. The Semantic Web: Research and Applications, 3rd
European Semantic Web Conference, ESWC 2006, Budva,
Montenegro, June 11-14, 2006, Proceedings, том 4011 из Lecture Notes in Computer Science, стр. 125--139. Springer, (2006)
L. Ma, H. Yu, G. Chen, L. Cao, и Y. Wang. CCTA (2), том 420 из IFIP Advances in Information and Communication Technology, стр. 138-144. Springer, (2013)