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Submitted on: 02 June 2013.
Revised on: 11 September 2013.
Accepted on: 07 October 2013.
___________________APPLIED STOCHASTIC MODELS IN BUSINESS AND INDUSTRY
Submitted on: 19 April 2002.
Revised on: 05 June 2002.
Accepted on: 15 July 2002.
___________________APPLIED STOCHASTIC MODELS IN BUSINESS AND INDUSTRY
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