Submitted on: 01 April 2015.
Revised on: 08 May 2015.
Accepted on: 27 May 2015.
___________________European Journal for Philosophy of Science
Submitted on: 02 August 2013.
Revised on: 29 September 2013.
Accepted on: 27 October 2013.
___________________European Journal for Philosophy of Science
Submitted on: 30 September 2012.
Revised on: 12 December 2012.
Accepted on: 27 January 2013.
___________________European Journal for Philosophy of Science
Submitted on: 24 February 2000.
Revised on: 21 April 2000.
Accepted on: 15 June 2000.
___________________European Journal for Philosophy of Science
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