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Submitted on: 25 June 2002.
Revised on: 21 July 2002.
Accepted on: 06 August 2002.
___________________INTERNATIONAL JOURNAL OF APPROXIMATE REASONING
Submitted on: 26 October 2015.
Revised on: 06 February 2016.
Accepted on: 02 April 2016.
___________________INTERNATIONAL JOURNAL OF APPROXIMATE REASONING
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Submitted on: 19 June 2000.
Revised on: 19 September 2000.
Accepted on: 29 October 2000.
___________________INTERNATIONAL JOURNAL OF APPROXIMATE REASONING
Submitted on: 18 January 2005.
Revised on: 09 April 2005.
Accepted on: 24 April 2005.
___________________INTERNATIONAL JOURNAL OF APPROXIMATE REASONING