Submitted on: 26 January 2008.
Revised on: 27 April 2008.
Accepted on: 28 May 2008.
___________________BIOMASS & BIOENERGY---PERGAMON-ELSEVIER SCIENCE LTD
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Submitted on: 21 January 2013.
Revised on: 22 March 2013.
Accepted on: 16 April 2013.
___________________BIOMASS & BIOENERGY---PERGAMON-ELSEVIER SCIENCE LTD
Submitted on: 22 August 2004.
Revised on: 17 October 2004.
Accepted on: 03 December 2004.
___________________BIOMASS & BIOENERGY---PERGAMON-ELSEVIER SCIENCE LTD
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