C. Halaschek-Wiener, and J. Hendler. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 727--736. New York, NY, USA, ACM, (2007)
N. Stokes, and J. Carthy. HLT '01: Proceedings of the first international conference on Human language technology research, page 1--8. Morristown, NJ, USA, Association for Computational Linguistics, (2001)
M. Spiliopoulou, A. Schulz, and K. Winkler. page 215-228. S.Shaker Verlag, (2003)Proceedings der 7. Konferenz der SAS-Anwender in Forschung und Entwicklung(KSFE), 20. Februar-21. Februar 2003, Universit t Potsdam.
S. Jokela, M. Turpeinen, T. Kurki, E. Savia, and R. Sulonen. HICSS '01: Proceedings of the 34th Annual Hawaii International Conference on System Sciences ( HICSS-34)-Volume 7, page 7044. Washington, DC, USA, IEEE Computer Society, (2001)