1. Hadley Industries PLC, PO Box 92, Downing Street, Smethwick, Birmingham B66 2PA, UK.
2. Closing the Cycle of Iron Steel and Aluminium in the UK Recycling Rates Scrap Quality and Collection of Dispersed Scrap;Davis,2004
3. Steel Recycling Factsheet, written by Environmental Resources Management for the Department of Trade and Industry, 2002. Recycling Policy Section, Sustainable Development Directorate, 151 Buckingham Palace Road, London.
4. The Finnish metal industry and the environment;Seppala;Resour. Conserv. Recycling,2002
5. Report of World Steel Industry, The Measure of our Sustainability, IISI The international Iron and Steel Institute, 2004, available at: http://www.worldsteel.org/pictures/publicationfiles/2004%20Sustainability%20Report.pdf (available on 23 May 2006).