O. Hoeber. Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 03, page 29--32. Washington, DC, USA, IEEE Computer Society, (2008)
A. Muralidharan, Z. Gyongyi, and E. Chi. Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems, page 1085--1094. New York, NY, USA, ACM, (2012)
S. Dumais, G. Buscher, and E. Cutrell. Proceeding of the third symposium on Information interaction in context, page 185--194. New York, NY, USA, ACM, (2010)
T. Mandl. Proceedings of the 17th ACM Conference on Hypertext and Hypermedia (HT '06) Odense, Denmark, August 22nd-25th., page 73-84. ACM Press, (2006)