Submitted on: 27 July 2009.
Revised on: 18 October 2009.
Accepted on: 22 November 2009.
___________________Entertainment Computing---ELSEVIER SCI LTD
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Submitted on: 11 May 2001.
Revised on: 26 August 2001.
Accepted on: 14 September 2001.
___________________Entertainment Computing---ELSEVIER SCI LTD
Submitted on: 06 February 2024.
Revised on: 06 May 2024.
Accepted on: 08 June 2024.
___________________Entertainment Computing---ELSEVIER SCI LTD
Submitted on: 17 September 2020.
Revised on: 21 November 2020.
Accepted on: 29 December 2020.
___________________Entertainment Computing---ELSEVIER SCI LTD
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Submitted on: 20 June 2003.
Revised on: 11 September 2003.
Accepted on: 07 October 2003.
___________________Entertainment Computing---ELSEVIER SCI LTD
Submitted on: 30 January 2014.
Revised on: 02 May 2014.
Accepted on: 23 May 2014.
___________________Entertainment Computing---ELSEVIER SCI LTD
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