Submitted on: 19 June 2001.
Revised on: 25 August 2001.
Accepted on: 16 October 2001.
___________________Energy Policy---ELSEVIER SCI LTD
Submitted on: 30 August 2017.
Revised on: 16 December 2017.
Accepted on: 01 January 2018.
___________________Energy Policy---ELSEVIER SCI LTD
Submitted on: 29 June 2014.
Revised on: 20 July 2014.
Accepted on: 06 September 2014.
___________________Energy Policy---ELSEVIER SCI LTD
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Submitted on: 23 March 2003.
Revised on: 12 June 2003.
Accepted on: 28 June 2003.
___________________Energy Policy---ELSEVIER SCI LTD
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Submitted on: 10 August 2011.
Revised on: 12 September 2011.
Accepted on: 29 September 2011.
___________________Energy Policy---ELSEVIER SCI LTD
Submitted on: 26 November 1999.
Revised on: 27 February 2000.
Accepted on: 02 April 2000.
___________________Energy Policy---ELSEVIER SCI LTD