1. Energy Technology Support Unit, U.K. Department of Energy, Energy Use and Energy Efficiency in U.K. Manufacturing Industry up to the Year 2000, volume 2. Her Majesty's Stationary Office, London, 1984.
2. Maier, W., Rationelle Energieverwendung durch neue Technologien (in German). Verlag TÜV Rheinland, Köln, 1986.
3. Least-Cost Climatic Stabilization
4. Beer, J.G de, Wees, M. T., van, Worrell, E. and Blok, K., ICARUS-3 — The Potential of Energy Efficiency Improvement in The Netherlands up to 2000 and 2015. Report 94013, Department of Science, Technology and Society, Utrecht University, Padualaan 14, 3584 CH Utrecht, The Netherlands, 1994.
5. The Costs of Limiting Fossil-Fuel CO2 Emissions: A Survey and Analysis