N. Law, E. Wong. Developmental Trajectory in Knowledge Building: An Investigation. In Barbara Wasson, Sten R. Ludvigsen, Ulrich Hoppe, editors, Designing for Change in Networked Learning Environments, Proceedings of the International Conference on Computer Support for Collaborative Learning, CSCL 2003, Bergen, Norway, June 14-18, 2003. Volume 2 of Computer-Supported Collaborative Learning, pages 57-66, Springer, 2003. [doi]