1. Bai-Lin, H (ed.) (1984) Chaos. World Scientific Publishing, Singapore.
2. Brisson, S.W (ed.) (1978) Hyper graphics. Westview Press, Boulder, Colo.
3. Casey, S.D (1987) “Formulating Fractals,” Computer Language 4(4):27–40.
4. Coyne, R.D and J.S. Gero (1985) “Design Knowledge and Sequential Plans,” Environment and Planning B 12:401–418.
5. Cundy, H.M and A.P. Rollett (1961) Mathematical Models, (2nd ed.). Oxford University Press, Oxford.