R. Ungrangsi, C. Anutariya, und V. Wuwongse. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, Volume 4825 von LNCS, Seite 561--574. Berlin, Heidelberg, Springer Verlag, (November 2007)
S. Bloehdorn, und Y. Sure. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, Volume 4825 von LNCS, Seite 57--70. Berlin, Heidelberg, Springer Verlag, (November 2007)