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3. Association of Plastics Manufacturers in Europe (APME): eco-profiles of the european plastics industry. Report 3: Polyethylene and Polypropylene. - APME, Brussels, 1993
4. Association of Plastics Manufacturers in Europe (APME): Eco-profiles of the European Plastics Industry. Report 4: Polystyrene. - APME, Brussels, 1993
5. Association of Plastics Manufacturers in Europe (APME): Eco-profiles of the European Plastics Industry. Report 5: Co-product Allocation in Chlorine Plants. - APME, Brussels, 1994