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Submitted on: 29 February 2020.
Revised on: 29 March 2020.
Accepted on: 09 April 2020.
___________________International Journal of Low-Carbon Technologies
Submitted on: 16 January 2003.
Revised on: 27 April 2003.
Accepted on: 22 May 2003.
___________________International Journal of Low-Carbon Technologies
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Submitted on: 12 September 2001.
Revised on: 27 December 2001.
Accepted on: 04 February 2002.
___________________International Journal of Low-Carbon Technologies
Submitted on: 02 July 2013.
Revised on: 18 August 2013.
Accepted on: 25 September 2013.
___________________International Journal of Low-Carbon Technologies