1. R. Bergmann and W. Wilke. Building and Refining Abstract Planning Cases by Change of Representation Language. Journal of Artificial Intelligence Research, 3:53–118,1995.
2. R. Bergmann and W. Wilke. PARIS: Flexible Plan Adaptation by Abstraction and Refinement. In A. Voß, R. Bergmann, and B. Bartsch-Spörl, editors, Workshop on Adaptation in Case-Based Reasoning, ECAI-96, Budapest, Hungary, August 1996.
3. L.K. Branting and D.W. Aha. Stratified Case-Based Reasoning: Reusing Hierarchical Problem Solving Episodes. In Proceedings of the 14th International Joint Conference on Artificial Intelligence (IJCAI’95), Montréal, volume 1, pages 384–390, August 1995.
4. J.G. Carbonell. Derivational analogy: A Theory of Reconstructive Problem Solving and Expertise Acquisition. In Machine Learning, volume 2, chapter 14, pages 371–392._Springer-Verlag, 1986.
5. E. Charniak and D.V. McDermott. Introduction to Artificial Intelligence. Addison Wesley, Reading, Massachusetts, 1985.