Submitted on: 19 July 2000.
Revised on: 16 August 2000.
Accepted on: 28 August 2000.
Renewable Energy
Submitted on: 12 October 2005.
Revised on: 29 October 2005.
Accepted on: 04 November 2005.
Renewable Energy
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Submitted on: 07 February 2008.
Revised on: 24 February 2008.
Accepted on: 15 March 2008.
Renewable Energy
Submitted on: 20 June 2002.
Revised on: 07 July 2002.
Accepted on: 25 July 2002.
Renewable Energy---PERGAMON-ELSEVIER SCIENCE LTD
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Submitted on: 24 June 2000.
Revised on: 18 July 2000.
Accepted on: 06 August 2000.
Renewable Energy