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Submitted on: 25 May 2009.
Revised on: 29 July 2009.
Accepted on: 18 September 2009.
___________________European Journal for Philosophy of Science
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Submitted on: 14 August 2009.
Revised on: 03 November 2009.
Accepted on: 04 December 2009.
___________________European Journal for Philosophy of Science
Submitted on: 06 September 1998.
Revised on: 31 December 1998.
Accepted on: 14 February 1999.
___________________European Journal for Philosophy of Science
Submitted on: 25 November 2007.
Revised on: 07 January 2008.
Accepted on: 22 January 2008.
___________________European Journal for Philosophy of Science
Submitted on: 01 July 2009.
Revised on: 04 August 2009.
Accepted on: 16 August 2009.
___________________European Journal for Philosophy of Science
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