M. Schindler, and D. Vrandecic. Proceedings of the WebSci'09: Society On-Line, Web Science Overlay Journal, (March 2009)http://journal.webscience.org/213/1/websci09_submission_120.pdf.
T. Malone, R. Laubacher, and C. Dellarocas. Research Paper, No. 4732-09. MIT, Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA, USA, (February 2009)
T. Zesch, C. Müller, and I. Gurevych. Proceedings of the Conference on Language Resources and Evaluation (LREC), electronic proceedings, Ubiquitious Knowledge Processing, Universität Darmstadt, (Mai 2008)
F. Ortega, J. Gonzalez-Barahona, and G. Robles. HICSS '08: Proceedings of the Proceedings of the 41st Annual Hawaii International Conference on System Sciences, page 304. Washington, DC, USA, IEEE Computer Society, (2008)
T. Hara, M. Ito, and S. Nishio. CIKM '08: Proceeding of the 17th ACM conference on Information and knowledge management, page 817-826. New York, NY, USA, ACM, (2008)
A. Kittur, and R. Kraut. CSCW '08: Proceedings of the ACM 2008 conference on Computer supported cooperative work, page 37--46. New York, NY, USA, ACM, (2008)
M. Pei, K. Nakayama, T. Hara, and S. Nishio. Advanced Information Networking and Applications - Workshops, 2008. AINAW 2008. 22nd International Conference on, page 1205--1210. (2008)
T. Declerck, H. Krieger, H. Saggion, and M. Spies. ECAI, volume 178 of Frontiers in Artificial Intelligence and Applications, page 841-842. IOS Press, (2008)