1. RATIONALE: a tool that reasons explicitly for the purpose of explanation;Abu-Hakima,1988
2. RATIONALE: A Tool for Developing Knowledge-Based Systems That Explain by Reasoning Explicitly;Abu-Hakima;Masters Thesis, Carleton University, Ottawa, Canada,1988
3. Law and Explanation;Achinstein,1971
4. The NeWS Book;Arden,1989
5. Expert systems: perils and promise;Bobrow;Communications of the ACM,1986