R. Kawase, G. Papadakis, E. Herder, and W. Nejdl. Proc. of 22nd ACM conference on Hyptertext and Hypermedia (HT), June 2011, Eindhoven, The Netherlands., (2011)
G. Papadakis, R. Kawase, and E. Herder. Proceedings of the 2nd International Conference on Web Intelligence, Mining and Semantics, page 14:1--14:12. New York, NY, USA, ACM, (2012)
S. Kaasten, and S. Greenberg. CHI '01: CHI '01 extended abstracts on Human factors in computing systems, page 379--380. New York, NY, USA, ACM Press, (2001)
B. Mckenzie, and A. Cockburn. HICSS '01: Proceedings of the 34th Annual Hawaii International Conference on System Sciences ( HICSS-34)-Volume 5, Washington, DC, USA, IEEE Computer Society, (2001)