1. F.G.H. van Wees, J.A. Over, J.E. van Buuren, P.M.B. Ronde: Energy consumption for steel production. An example of energy accounting. ESC, Report 38, Petten, November 1986
2. International Iron and Steel Institute, Committee on technology: Energy and the steel industry, Brussels, 1982
3. A.R. Braun, J. Isings: Energy consumption in the basic metals industry, Hengelo, June 1990 (in Dutch)
4. M.H. Chiogioji: Industrial energy conservation (Energy, power and environment, part 4), New York, 1979
5. Personal communication with mr. R.M. van Ginkel, Hoogovens BV, 21 November 1990 and February 1992