C. Yeung, N. Gibbins, and N. Shadbolt. Proceedings of the 6th International Semantic Web Conference and
2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, volume 4825 of LNCS, page 960--964. Berlin, Heidelberg, Springer Verlag, (November 2007)
C. Yeung, N. Gibbins, and N. Shadbolt. Proceedings of the 6th International Semantic Web Conference and
2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, volume 4825 of LNCS, page 960--964. Berlin, Heidelberg, Springer Verlag, (November 2007)
R. J�schke, A. Hotho, C. Schmitz, and G. Stumme. Proc. 18. Workshop Grundlagen von Datenbanken, page 80-84. Halle-Wittenberg, Martin-Luther-Universit�t, (June 2006)
W. Jones, A. Phuwanartnurak, R. Gill, and H. Bruce. CHI '05: CHI '05 extended abstracts on Human factors in computing
systems, page 1505--1508. New York, NY, USA, ACM Press, (2005)