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Submitted on: 06 December 2001.
Revised on: 10 March 2002.
Accepted on: 18 April 2002.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
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Submitted on: 19 May 2013.
Revised on: 25 June 2013.
Accepted on: 09 August 2013.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
Submitted on: 27 August 2009.
Revised on: 04 December 2009.
Accepted on: 28 December 2009.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
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Submitted on: 02 June 2015.
Revised on: 18 July 2015.
Accepted on: 24 August 2015.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
Submitted on: 26 May 2010.
Revised on: 11 July 2010.
Accepted on: 09 September 2010.
___________________INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
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