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Submitted on: 11 September 2013.
Revised on: 25 December 2013.
Accepted on: 04 February 2014.
___________________JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION
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Submitted on: 21 June 2017.
Revised on: 07 August 2017.
Accepted on: 01 September 2017.
___________________JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION