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Submitted on: 02 June 2008.
Revised on: 29 July 2008.
Accepted on: 25 August 2008.
___________________Journal of Derivatives---PAGEANT MEDIA LTD
Submitted on: 07 December 2003.
Revised on: 04 January 2004.
Accepted on: 23 February 2004.
___________________Journal of Derivatives---PAGEANT MEDIA LTD
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Submitted on: 16 November 2011.
Revised on: 11 January 2012.
Accepted on: 03 February 2012.
___________________Journal of Derivatives---PAGEANT MEDIA LTD