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2. Environmental systems analysis tools – an overview;Finnveden;Journal of Cleaner Production,2005
3. Greening the Economy through Life Cycle Thinking – Ten Years ofthe UNEP/SETAC Life Cycle Initiative,2012
4. Life Cycle Management – A Business Guide to Sustainability,2007
5. Design for the Environment, USEPA’s website, available at: http://www.epa.gov/dfe/pubs/about/index.htm.