user- Proceedings of the First International Conference on Practical Applications of Intelligent Agents and Multi-Agents Technology PAAM96, page 837-842. London, UK, (1996)
- Proceedings of the Practical Application of Knowledge Discovery and Data Mining PADD97, page 125--136. Springer, (1997)
- Communications of the ACM 19(3):113-126 (March 1976)p. 116: "The Physical Symbol System Hypothesis. A physical symbol system has the necessary and sufficient means for general intelligent action." p. 1...p. 116: "The Physical Symbol System Hypothesis. A physical symbol system has the necessary and sufficient means for general intelligent action." p. 120: "Heuristic Search Hypothesis. The solutions to problems are represented as symbol structures. A physical symbol system exercises its intelligence in problem solving by search--that is, by generating and progressively modifying symbol structures until it produces a solution structure." p. 121: "To state a problem is to designate 1 a test for a class of symbol structures solutions of the problem, and 2 a generator of symbol structures potential solutions. To solve a problem is to generate a structure, using 2, that satisfies the test of 1.".
