Submitted on: 26 May 1999.
Revised on: 18 June 1999.
Accepted on: 11 July 1999.
Nature Energy---NATURE PORTFOLIO
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http://reply.papertrans.cn/3/228/22716/22716-13.png
Submitted on: 23 March 2001.
Revised on: 31 March 2001.
Accepted on: 14 April 2001.
Nature Energy---NATURE PORTFOLIO
Submitted on: 02 September 2012.
Revised on: 14 September 2012.
Accepted on: 10 October 2012.
Nature Energy
Submitted on: 05 July 2013.
Revised on: 13 August 2013.
Accepted on: 02 September 2013.
Nature Energy---NATURE PORTFOLIO
Submitted on: 23 February 2006.
Revised on: 10 March 2006.
Accepted on: 30 March 2006.
Nature Energy
Submitted on: 21 September 2006.
Revised on: 14 October 2006.
Accepted on: 04 November 2006.
Nature Energy
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Submitted on: 12 June 2009.
Revised on: 21 July 2009.
Accepted on: 13 August 2009.
Nature Energy