Y. Mor, J. Tholander, and J. Holmberg. The 10th Computer Supported Collaborative Learning (CSCL) conference (2005), page 450 - 459. Taipei, Taiwan, Lawrence Erlbaum Associates, (2006)
J. Sarmiento, S. Trausan-Matu, and G. Stahl. presented at the International Symposium on Organizational Learning and Knowledge Work Management (OL-KWM 2005), page 88-99. Bucharest, Romania, (2005)