Submitted on: 01 February 2007.
Revised on: 24 April 2007.
Accepted on: 13 June 2007.
___________________Clean Energy---OXFORD UNIV PRESS
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Submitted on: 14 May 1999.
Revised on: 26 August 1999.
Accepted on: 15 September 1999.
___________________Clean Energy---OXFORD UNIV PRESS
Submitted on: 07 September 2020.
Revised on: 03 November 2020.
Accepted on: 29 November 2020.
___________________Clean Energy---OXFORD UNIV PRESS
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http://reply.papertrans.cn/1/55/5495/5495-26.png
Submitted on: 09 March 2009.
Revised on: 06 May 2009.
Accepted on: 12 June 2009.
___________________Clean Energy---OXFORD UNIV PRESS
Submitted on: 15 September 2004.
Revised on: 19 November 2004.
Accepted on: 30 November 2004.
___________________Clean Energy---OXFORD UNIV PRESS
Submitted on: 19 December 2012.
Revised on: 06 April 2013.
Accepted on: 19 April 2013.
___________________Clean Energy---OXFORD UNIV PRESS
Submitted on: 20 August 2013.
Revised on: 06 December 2013.
Accepted on: 23 December 2013.
___________________Clean Energy---OXFORD UNIV PRESS