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Submitted on: 03 February 2013.
Revised on: 01 June 2013.
Accepted on: 23 June 2013.
___________________ECOLOGICAL ECONOMICS---ELSEVIER
Submitted on: 20 March 2017.
Revised on: 13 July 2017.
Accepted on: 21 August 2017.
___________________ECOLOGICAL ECONOMICS---ELSEVIER
Submitted on: 24 May 2002.
Revised on: 13 September 2002.
Accepted on: 31 October 2002.
___________________ECOLOGICAL ECONOMICS---ELSEVIER
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Submitted on: 11 May 2005.
Revised on: 07 September 2005.
Accepted on: 29 October 2005.
___________________ECOLOGICAL ECONOMICS---ELSEVIER
Submitted on: 30 April 2017.
Revised on: 07 August 2017.
Accepted on: 02 October 2017.
___________________ECOLOGICAL ECONOMICS---ELSEVIER
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Submitted on: 27 May 2008.
Revised on: 02 September 2008.
Accepted on: 17 October 2008.
___________________ECOLOGICAL ECONOMICS---ELSEVIER
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