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Submitted on: 17 September 1999.
Revised on: 31 October 1999.
Accepted on: 29 November 1999.
___________________Journal of Electrical Engineering-Elektrotechnicky Casopis
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Submitted on: 16 December 2014.
Revised on: 31 March 2015.
Accepted on: 11 May 2015.
___________________Journal of Electrical Engineering-Elektrotechnicky Casopis
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Submitted on: 14 August 2023.
Revised on: 22 October 2023.
Accepted on: 02 December 2023.
___________________Journal of Electrical Engineering-Elektrotechnicky Casopis
Submitted on: 21 March 2003.
Revised on: 16 May 2003.
Accepted on: 09 July 2003.
___________________Journal of Electrical Engineering-Elektrotechnicky Casopis
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