Hummel, J. and K. Holyoak. (1997). Distributed Representations of
Structure: A Theory of Analogical Access and Mapping. Psychological
Review, Vol. 104, No. 3., 427-466.

Reading 4.3 Hofstadter, D. (1995). A Review of Mental Leaps: Analogy in
Creative Thought." AI Magazine, Fall 1995, 75-80.