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Recycling and commodity exports from developing countries
Hoffmann, Ulrich - In: Life-cycle management and trade, (pp. 159-164). 1994
Persistent link: https://www.econbiz.de/10001288894
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Demand growth for industrial raw materials and its determinants : an analysis for the period 1965 - 1988
Hoffmann, Ulrich; Zivkovic, Dusan - 1992
Persistent link: https://www.econbiz.de/10011352222