1. Industrial metabolism: theory and policy;Ayres,1994
2. Metals recycling: economic and environmental implications;Ayres;Resour Conserv Recycl,1997
3. Beijing General Research Institute of Mining and Metallurgy. Copper scrap recovery in China. Six regular meeting of the environmental and economics committee; 1999.
4. Boltzmann, L. Vorlesungen uber Gastheorie, Barth, Leipzig; 1923.
5. Practical handbook of material flow analysis;Brunner,2004