1. Akin, O., Dave B. and Pithavadian, S. (1992) Heuristic generation of layouts (HeGel): based on a paradigm for problem structuring, Environment and Planning B 19: 33–59.
2. Buffa, E. S., Armour, G. S. and Vollman, T. E. (1964) Allocating facilities with CRAFT, Harvard Business Review 42(2): 136–140.
3. Damski, J. C. B. and Gero, J. S. (1993) Using logic to represent graphical shapes, in C. Rowles, H. Liu and N. Foo (eds), AIí93 — The Sixth Australian Joint Conference on Artificial Intelligence, World Scientific, Singapore, pp. 90–95.
4. Damski, J. C. B. (1996). Logic Representation of Shapes, PhD Thesis, The University of Sydney, Sydney, Australia.
5. Damski, J. C. B. and Gero, J. S. (1996). A logic-based framework for shape representation, Computer-Aided Design 28(3): 169–181.