1. Interface Issues for Advice Giving Expert System;Carroll;Communications of the ACM,1987
2. Software Simulation as a Tool for Usable Product Design;Clark;IBM Systems Journal,1981
3. Artificial Intelligence and Japan's Challenge to the World;Feigenbaum,1983
4. An Integral Approach to User Assistance;Fenchel;Sigsoc Bulletin (ACM),1981
5. Active Help Systems;Fischer,1984