1. MXEC: Parallel processing with an advanced macro facility;Ash;Communications of the ACM,1981
2. Representation of task-specific knowiedge in a gracefully interacting user interface;Ball,1980
3. Understanding plans of novice programmers;Bonar,1984
4. Machine learning: a historical and methodological analysis;Carbonell;The AI Magazine,1983
5. The keystroke-level model for user performance time with interactive systems;Card;Communications of the ACM,1980