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Submitted on: 14 March 2011.
Revised on: 02 May 2011.
Accepted on: 14 May 2011.
___________________Current Opinion in Environmental Sustainability
Submitted on: 21 June 2007.
Revised on: 03 August 2007.
Accepted on: 13 August 2007.
___________________Current Opinion in Environmental Sustainability
Submitted on: 22 August 2018.
Revised on: 08 December 2018.
Accepted on: 31 December 2018.
___________________Current Opinion in Environmental Sustainability
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Submitted on: 17 October 2003.
Revised on: 08 November 2003.
Accepted on: 21 November 2003.
___________________Current Opinion in Environmental Sustainability
Submitted on: 14 July 1998.
Revised on: 05 November 1998.
Accepted on: 10 December 1998.
___________________Current Opinion in Environmental Sustainability
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