Harvey, D.M., Jonassen, D.H. & Clariana, R. (2000). Cognitive Flexibility Hypertext and the Role of the Learning Task. In J. Bourdeau & R. Heller (Eds.), Proceedings of EdMedia + Innovate Learning 2000 (pp. 423-428). Waynesville, NC: Association for the Advancement of Computing in Education (AACE).