1. Extracting shapes from grey-scale images;Boreham;International Journal of Man-Machine Studies,1982
2. Scene analysis using regions;Brice;Artificial Intelligence,1970
3. On purpose: an enquiry into possible roles of the computer in art;Cohen;Studio International,1974
4. Jasper Johns;Crichton,1977
5. Graphics without data structures;Edmonds;Proceedings Computer Aided Design 80,1980