Submitted on: 24 April 1999.
Revised on: 19 August 1999.
Accepted on: 18 September 1999.
___________________IEEE Pulse---IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Submitted on: 22 April 2006.
Revised on: 24 July 2006.
Accepted on: 22 August 2006.
___________________IEEE Pulse---IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Submitted on: 22 October 2013.
Revised on: 02 January 2014.
Accepted on: 11 February 2014.
___________________IEEE Pulse---IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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