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Submitted on: 08 February 2000.
Revised on: 09 March 2000.
Accepted on: 16 April 2000.
___________________INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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Submitted on: 17 December 2003.
Revised on: 07 January 2004.
Accepted on: 01 March 2004.
___________________INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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Submitted on: 04 June 2023.
Revised on: 10 July 2023.
Accepted on: 06 September 2023.
___________________INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Submitted on: 11 September 2018.
Revised on: 09 December 2018.
Accepted on: 29 January 2019.
___________________INTERNATIONAL JOURNAL OF HYDROGEN ENERGY