1. Andreasen, M. M.: 1992, The theory of domains, Proceedings of Workshop on Understanding Function and Function-to-Form Evolution,Cambridge University.
2. Bowen, J. and Bahler, D.: 1992, Frames, quantification, perspectives and negotiation in constraint networks in life-cycle engineering, International Journal of AI in Engineering, 7, 199–226.
3. Bracewell, R. H. and Sharpe, J. E. E.: 1996, Functional descriptions used in computer support for qualitative scheme generation = “Schemebuilder”, Artificial Intelligence for Engineering Design and Manufacture,10(4), 333–345.
4. Chakrabarti, A. and Blessing, L.: 1996, Guest editorial: Representing functionality in design, Artificial Intelligence for Engineering Design and Manufacture,10(4), 251–253.
5. Chung, J. C. H.: 1994, Constraint-based variational design, in W. Hower, D. Haroud, and Z. Ruttkay (eds) Proceedings of the AID’94 Workshop on Constraint Processing in Computer-Aided Design, pp. 44–54.