L. Predoiu. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, Volume 4825 von LNCS, Seite 930--934. Berlin, Heidelberg, Springer Verlag, (November 2007)
M. Mao. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, Volume 4825 von LNCS, Seite 925--929. Berlin, Heidelberg, Springer Verlag, (November 2007)