1. IFEU (2006) Life cycle assessment of beverage packaging for beer: comparison of aluminium cans and reusable glass bottles. IFEU, Germany
2. ISO—International Standard Organisation (2006a) Environmental management—life cycle assessment: principles and framework. ISO 14040 (October)
3. ISO—International Standard Organisation (2006b) Environmental management—life cycle assessment: requirements and guidelines. ISO 14044 (October)
4. ISO—International Standard Organisation (2006c) Environmental labels and declarations—type III: environmental declarations: principles and procedures. ISO 14025 (October)
5. SETAC Europe LCA Steering Committee (2008) Standardisation efforts to measure greenhouse gases and ‘carbon footprinting’ for products. Int J Life Cycle Assess 13(2):87–88