Submitted on: 27 March 2010.
Revised on: 19 April 2010.
Accepted on: 06 May 2010.
Water Resources and Economics---ELSEVIER
Submitted on: 07 March 2003.
Revised on: 15 April 2003.
Accepted on: 06 May 2003.
Water Resources and Economics
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Submitted on: 22 September 1999.
Revised on: 07 October 1999.
Accepted on: 24 October 1999.
Water Resources and Economics
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