B. Krause, R. Jäschke, A. Hotho, and G. Stumme. HT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia, page 157-166. New York, NY, USA, ACM, (2008)
M. Blank, T. Bopp, T. Hampel, and J. Schulte. Good Tags - Bad Tags. Social Tagging in der Wissensorganisation, page 85-97. Münster, New York, München, Berlin, Waxmann, (2008)
D. Millen, J. Feinberg, and B. Kerr. CHI '06: Proceedings of the SIGCHI conference on Human Factors in
computing systems, page 111--120. New York, NY, USA, ACM Press, (2006)
D. Millen, J. Feinberg, and B. Kerr. CHI '06: Proceedings of the SIGCHI conference on Human Factors in computing systems, page 111--120. New York, NY, USA, ACM Press, (2006)