J. Vig, S. Sen, and J. Riedl. IUI '09: Proceedings of the 13th international conference on Intelligent user interfaces, page 47--56. New York, NY, USA, ACM, (2009)
G. Groh, and C. Ehmig. GROUP '07: Proceedings of the 2007 international ACM conference on Supporting group work, page 127--136. New York, NY, USA, ACM, (2007)
F. Suchanek, M. Vojnovic, and D. Gunawardena. Proceedings of the 17th ACM Conference on Information and Knowledge Management, page 223--232. New York, NY, USA, ACM, (2008)
Y. Song, Z. Zhuang, H. Li, Q. Zhao, J. Li, W. Lee, and C. Giles. Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, page 515--522. New York, NY, USA, ACM, (2008)
D. Dicheva, and C. Dichev. Proceedings of 2010 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology, page 631--638. (2010)
D. Parra-Santander, and P. Brusilovsky. Web Intelligence and Intelligent Agent Technology (WI-IAT), 2010 IEEE/WIC/ACM International Conference on, 1, page 136--142. Los Alamitos, CA, USA, IEEE, (August 2010)