1. Goldenberg, E. Paul (1988). Mathematics, Metaphors, and Human Factors. J. Mathematical Behaviour, 7, pp. 135–173. September.
2. Goldenberg E., Lewis, P., & O’Keefe, J. (1992). Dynamic representation and the development of an understanding of functions. In Dubinsky E., and G. Harel (eds.) The Learning and Teaching of Functions, Washington, DC: Mathematical Association of America.
3. Monk, G.S. (1992). Students’ understanding of a function given by a physical model. In Dubinsky E., and G. Harel (eds.) The Learning and Teaching of Functions, Washington, DC: Mathematical Association of America.
4. Vinner, S. (1983). Concept definition, concept image and the notion of function. International Journal of Mathematical Education in Science and Technology 14: 293–305.
5. Vinner, S. & T. Dreyfus. (1989). Images and Definitions for the Concept of Function. J. Research in Mathematics Education 20(4): 356–366.