1. Notes on the Synthesis of Form;Alexander,1964
2. Cybernetic model of the design process;Amkreutz;Computer Aided Design,1976
3. Presentation and representation in design problem solving;Carroll;IBM Research Report RC 6975,1978
4. On problem-solving;Duncker;Psychological Monographs,1945
5. Cognitive processes and ill-defined problems: a case study from design;Eastman;Proceedings of First Joint International Conference on Artificial Intelligence,1969