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Submitted on: 06 October 2001.
Revised on: 09 November 2001.
Accepted on: 04 January 2002.
___________________Environmental Progress & Sustainable Energy
Submitted on: 12 June 2014.
Revised on: 10 August 2014.
Accepted on: 22 September 2014.
___________________Environmental Progress & Sustainable Energy
Submitted on: 29 August 2020.
Revised on: 28 September 2020.
Accepted on: 15 November 2020.
___________________Environmental Progress & Sustainable Energy
Submitted on: 06 August 2021.
Revised on: 30 November 2021.
Accepted on: 25 January 2022.
___________________Environmental Progress & Sustainable Energy
Submitted on: 12 January 1998.
Revised on: 27 March 1998.
Accepted on: 15 May 1998.
___________________Environmental Progress & Sustainable Energy
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Submitted on: 03 December 2009.
Revised on: 25 January 2010.
Accepted on: 28 February 2010.
___________________Environmental Progress & Sustainable Energy