Submitted on: 16 January 2001.
Revised on: 21 March 2001.
Accepted on: 19 May 2001.
___________________IEEE Latin America Transactions
Submitted on: 16 March 2001.
Revised on: 11 July 2001.
Accepted on: 09 September 2001.
___________________IEEE Latin America Transactions
Submitted on: 11 September 2024.
Revised on: 07 November 2024.
Accepted on: 15 December 2024.
___________________IEEE Latin America Transactions
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http://reply.papertrans.cn/2/119/11833/11833-15.png
Submitted on: 18 July 2004.
Revised on: 24 September 2004.
Accepted on: 02 November 2004.
___________________IEEE Latin America Transactions
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Submitted on: 26 March 2008.
Revised on: 14 May 2008.
Accepted on: 27 June 2008.
___________________IEEE Latin America Transactions
Submitted on: 22 January 2003.
Revised on: 01 April 2003.
Accepted on: 26 April 2003.
___________________IEEE Latin America Transactions
Submitted on: 06 May 2017.
Revised on: 11 June 2017.
Accepted on: 03 August 2017.
___________________IEEE Latin America Transactions