Submitted on: 21 March 2003.
Revised on: 01 June 2003.
Accepted on: 22 July 2003.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
Submitted on: 19 November 2010.
Revised on: 25 January 2011.
Accepted on: 26 February 2011.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
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Submitted on: 07 December 2000.
Revised on: 01 January 2001.
Accepted on: 12 January 2001.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
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Submitted on: 20 April 2017.
Revised on: 16 May 2017.
Accepted on: 24 June 2017.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
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