Submitted on: 12 October 1998.
Revised on: 08 December 1998.
Accepted on: 29 January 1999.
___________________IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
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Submitted on: 24 March 2003.
Revised on: 20 June 2003.
Accepted on: 13 July 2003.
___________________IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
Submitted on: 11 June 2005.
Revised on: 17 August 2005.
Accepted on: 04 October 2005.
___________________IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
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Submitted on: 21 May 2005.
Revised on: 09 August 2005.
Accepted on: 02 October 2005.
___________________IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS