1. Allen, PM (1984) Self-organisation and evolution in urban systems, ch 2. In: R Crosby ed,Cities and Regions as Non-Linear Decision Systems. AAAS Selected Symposia, 77, Westview Press, Boulder Colorado.
2. Allen, PM, Engelen, G & Sanglier, M (1986) Towards a general dynamic model of the spatial evolution of urban and regional systems, ch 3. In: D Hutchinson ed,Advances in Urban Systems Modelling. Plenum Press.
3. Allen, PM (1988) Evolution: Why the whole is greater than the sum of its parts, ch 1. In: R Wolff, G Soeder & S Drepper eds,Ecodynamics. Springer-Verlag, Berlin.
4. Allen, PM (2000) Modelling complex economic evolution. In: D Schweitzer and R Silverberg eds,Evolution and Selbstorganisation in der Okonmie. Walter de Gruyter, Berlin and New York.
5. Allen, PM (2001) Knowledge, Ignorance and the Evolution of Complex Systems, ch 4. In: J Foster & S Metcalfe eds,Frontiers of Evolutionary Economics: Competition, Self-Organisation and Innovation Policy. Edward Elgar, Cheltenham, UK.