Submitted on: 30 June 2022.
Revised on: 18 September 2022.
Accepted on: 11 October 2022.
___________________Journal of Mathematical Behavior
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Submitted on: 08 November 1998.
Revised on: 02 January 1999.
Accepted on: 20 January 1999.
___________________Journal of Mathematical Behavior
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Submitted on: 09 January 2002.
Revised on: 27 April 2002.
Accepted on: 07 June 2002.
___________________Journal of Mathematical Behavior
Submitted on: 07 July 2004.
Revised on: 31 July 2004.
Accepted on: 24 September 2004.
___________________Journal of Mathematical Behavior
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Submitted on: 10 February 2008.
Revised on: 27 March 2008.
Accepted on: 18 April 2008.
___________________Journal of Mathematical Behavior
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