1. Altmann, E. M., &John, B. E. (1999). Episodic indexing: A model of memory for attention events.Cognitive Science,23, 117–156.
2. Byrne, M. D. (2001). ACT-R/PM and menu selection: Applying a cognitive architecture to HCI.International Journal of Human-Computer Studies,55, 41–84.
3. Card, S., Moran, T., &Newell, A. (1983).The psychology of human-computer interaction. Hillsdale, NJ: Erlbaum.
4. Chassell, R. J. (2001).An introduction to programming in Emacs Lisp (2nd ed.). Cambridge, MA: Free Software Foundation. Retrieved May 2, 2004, from www.gnu.org/software/emacs/emacs-lisp-intro/.
5. Clarke, D. D., &Crossland, J. (1985).Action systems: An introduction to the analysis of complex behaviour. London: Methuen.