S. Bloehdorn, and Y. Sure. Proceedings of the 6th International Semantic Web Conference and the 2nd Asian Semantic Web Conference (ISWC 2007 + ASWC 2007), volume 4825 of Lecture Notes in Computer Science, page 58--71. Busan, Korea, Springer Verlag, (November 2007)
S. Bloehdorn, and Y. Sure. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, volume 4825 of LNCS, page 57--70. Berlin, Heidelberg, Springer Verlag, (November 2007)