1. Abernathy, W.J. & Utterback, J.M. (1978). Patterns of Industrial Innovation, Technology Review 80, 7 (June/ July), 40 – 7.
2. Ashford, N.A.; Heaton, G.R. & Priest, W.C. (1979). Environmental, Health and Safety Regulation and Technological Innovation. In: Technological Innovation for a Dynamic Economy, Hill, C.T. & Hutterback, J.M. (eds), pp. 161–221, Pergamon Press, Inc. NY.
3. Ashford, N.A. (1993). Understanding Technological Responses of Industrial Firms to Environmental Problems: Implications for Government Policy. In: Fisher, K. and Schot, J. (Eds), Environmental Strategies for Industry, Island Press, Washington D.C., 277–307.
4. Bessant, J. (1991). Managing Adv. Manufacturing Technology: The challenge of the fifth wave, Blackwell Ltd, Oxford.
5. Brezet, H. (1997). Dynamics in Ecodesign Practice, UNEP Industry & Environment 20, 1, Jan-June: 21–4.