A. Becks, T. Reichling, and V. Wulff. Proceedings of the Thirty-Sixth Annual Hawaii International Conference
on System Sciences (HICSS-36), January 6--9, Big Island, Hawaii, (2003)
K. Nurmela, T. Palonen, E. Lethinen, and K. Hakkarainen. Designing for Change in Networked Learning Environments. Proceedings
of the International Conference on Computer Support for Collaborative
Learning (June 14--18, 2003) in Bergen, Norway, Kluwer, Dordrecht, NL, (2003)