| 2 | -- | 0 | . Editorial Board |
| 2 | -- | 0 | . Letter to the Editor |
| 4 | -- | 5 | . Questions remaining for AI copyrights, and Patents |
| 7 | -- | 11 | Saul Amarel. Guest Editor s Introduction |
| 12 | -- | 17 | William S. Mark, Robert L. Simpson Jr.. Knowledge-Based Systems: An Overview |
| 18 | -- | 29 | Sheila B. Banks, Carl S. Lizza. Pilot s Associate: A Cooperative, Knowledge-Based System Application |
| 30 | -- | 40 | Frederick Hayes-Roth, James E. Davidson, Lee D. Erman, Jay S. Lark. Frameworks for Developing Intelligent Systems: The ABE Systems Engineering Environment |
| 41 | -- | 46 | Robert M. MacGregor, Mark H. Burstein. Using a Description Classifier to Enhance Knowledge Representation |
| 47 | -- | 49 | B. Chandrasekaran, William R. Swartout. Explanations in Knowledge Systems: the Role of Explicit Representation of Design Knowledge |
| 50 | -- | 57 | Michael C. Tanner, Anne M. Keuneke. Explanations in Knowledge Systems: The Roles of the Task Structure and Domain Functional Models |
| 58 | -- | 64 | William R. Swartout, Cécile Paris, Johanna D. Moore. Explanations in Knowledge Systems: Design for Explainable Expert Systems |
| 65 | -- | 66 | James K. McDowell, Mark A. Kramer, James F. Davis. Guest Editor s Introduction |
| 67 | -- | 74 | Daniel Dvorak, Benjamin Kuipers. Process Monitoring and Diagnosis: A Model-Based Approach |
| 75 | -- | 85 | Samir Padalkar, Gabor Karsai, Csaba Biegl, Janos Sztipanovits, Koji Okuda, Nobuji Miyasaka. Real-Time Fault Diagnostics |
| 86 | -- | 91 | . First International Workshop on Principles and Diagnostics |
| 88 | -- | 91 | . Procyon Common Lisp |
| 92 | -- | 95 | . New Products |
| 96 | -- | 97 | . Automated Deduction in Nonclassical Logistics |
| 97 | -- | 99 | . New Books |