Submitted on: 09 December 2012.
Revised on: 07 January 2013.
Accepted on: 19 January 2013.
NULL
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Submitted on: 24 February 2017.
Revised on: 10 March 2017.
Accepted on: 16 March 2017.
NULL
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Submitted on: 10 November 1998.
Revised on: 28 November 1998.
Accepted on: 06 December 1998.
Renewable Energy Research and Applications
Submitted on: 27 March 2001.
Revised on: 23 April 2001.
Accepted on: 09 May 2001.
Renewable Energy Research and Applications
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