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Submitted on: 14 September 2021.
Revised on: 22 October 2021.
Accepted on: 02 December 2021.
___________________INTERNATIONAL STATISTICAL REVIEW
Submitted on: 19 September 2011.
Revised on: 16 October 2011.
Accepted on: 29 October 2011.
___________________INTERNATIONAL STATISTICAL REVIEW
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Submitted on: 24 February 2007.
Revised on: 20 June 2007.
Accepted on: 04 July 2007.
___________________INTERNATIONAL STATISTICAL REVIEW
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Submitted on: 04 February 2017.
Revised on: 13 March 2017.
Accepted on: 12 May 2017.
___________________INTERNATIONAL STATISTICAL REVIEW
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http://reply.papertrans.cn/2/145/14433/14433-29.png
Submitted on: 09 October 2013.
Revised on: 31 October 2013.
Accepted on: 23 November 2013.
___________________INTERNATIONAL STATISTICAL REVIEW