Submitted on: 27 May 1999.
Revised on: 07 August 1999.
Accepted on: 19 September 1999.
___________________INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
Submitted on: 17 September 2004.
Revised on: 09 November 2004.
Accepted on: 07 January 2005.
___________________INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
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Submitted on: 31 January 2000.
Revised on: 26 April 2000.
Accepted on: 21 May 2000.
___________________INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
Submitted on: 07 May 2010.
Revised on: 05 June 2010.
Accepted on: 08 July 2010.
___________________INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
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