Submitted on: 20 May 2012.
Revised on: 07 August 2012.
Accepted on: 09 September 2012.
___________________Journal of Statistical Planning and Inference
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Submitted on: 18 April 2023.
Revised on: 24 July 2023.
Accepted on: 30 August 2023.
___________________Journal of Statistical Planning and Inference
Submitted on: 06 September 1998.
Revised on: 12 October 1998.
Accepted on: 09 November 1998.
___________________Journal of Statistical Planning and Inference
Submitted on: 11 August 2007.
Revised on: 12 November 2007.
Accepted on: 25 December 2007.
___________________Journal of Statistical Planning and Inference
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Submitted on: 28 December 2013.
Revised on: 01 April 2014.
Accepted on: 22 May 2014.
___________________Journal of Statistical Planning and Inference
Submitted on: 27 September 2011.
Revised on: 22 December 2011.
Accepted on: 05 January 2012.
___________________Journal of Statistical Planning and Inference