1. Dahl O-J., & K. Nygoard, SIMULA — An Algol-based Simulation Language, CACM, Vol 9, No 9, pp 671–678, 1966.
2. B.J. Garner, C. Chong, A. Jiramahasuwan, D. Lui, D. Lukose & E. Tsui, Actor Implementations in Cybernetic Reasoning Systems, 2nd Annual Conference on Conceptual Graphs, IBM Paris Scientific Center, Paris, September 2–4, 1987.
3. B.J. Garner & D. Lukose, Goal Interpretation as a Knowledge Acquisition Mechanism, to be presented at the International Conference on AI in Industry and Government, Hyderabad, India, November 23–25, 1989.
4. B.J. Garner & E. Tsui, An Extendible Graph Processor for Knowledge Engineering, Applications of AI III, John F. Gilmore, Editor, Proc. SPIE 635, pp 415–33 (1986).
5. I. Greif & C. Hewitt, Actor Semantics of PLANNER-73, 2nd. ACM Symposium on Principles of Programming Languages, pp 67–77, 1975, Palo Alto, Calif., USA.