1. Aikins J. S., Prototypical Knowledge for Expert Systems, Artificial Intelligence 120 (1983), 163–210. (This paper describes Centaur, Aikins’ thesis project. It provided a single framework that combined both rules and frames.)
2. Anderson J., Farrell R. and Sauers R., Learning to Program in LISP, Cognitive Science 8 (1984), 87–129. (The paper describes an intelligent tutoring system which taught some basics of programming in LISP.)
3. PC AI, The Artificial Intelligence Magazine for Personal Computing;S Athey,1989
4. Barzilay A., An Expert System for Tutoring Probability Theory, PhD Thesis submitted to Graduate School of Business, University of Pittsburgh, 1984. (The system SPIRIT was built using OPS5. It tutors in conditional probabilities.)
5. Becker R. A. and Chambers J.M., S: an Interactive Environment for Data Analysis and Graphics, Wadsworth, Belmont, California, 1984. (This is the manual for the use of (old) S, a statistical computing system produced by AT&T Bell Laboratories. It contains information on ordering S.)