K. Möller, and S. Decker. Proceedings of the 1st Workshop on The Semantic Desktop at the ISWC 2005 Conference, page 79 - 91. Galway, Ireland, (November 2005)
C. Schmitz, A. Hotho, R. Jäschke, and G. Stumme. The Semantic Web: Research and Applications, volume 4011 of LNAI, page 530-544. Heidelberg, Springer, (2006)
S. Decker, and M. Frank. Proc.\ WWW Workshop on Application Design,
Development and Implementation Issues in the
Semantic Web, Net York City, NY, (May 2004)