G. Weaver, B. Strickland, и G. Crane. JCDL ‘06: Proceedings of the 6th ACM/IEEE-CS joint conference on
Digital libraries, стр. 358–358. New York, NY, USA, ACM, (2006)
G. Wang, Y. Yu, и H. Zhu. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, том 4825 из LNCS, стр. 575--588. Berlin, Heidelberg, Springer Verlag, (ноября 2007)
S. Banerjee. ICMLA '07: Proceedings of the Sixth International Conference on Machine Learning and Applications (ICMLA 2007), стр. 148--153. Washington, DC, USA, IEEE Computer Society, (2007)