Submitted on: 05 August 2010.
Revised on: 05 November 2010.
Accepted on: 09 December 2010.
___________________Journal of Spectroscopy---HINDAWI LTD
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Submitted on: 22 April 2004.
Revised on: 31 May 2004.
Accepted on: 26 July 2004.
___________________Journal of Spectroscopy---HINDAWI LTD
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Submitted on: 18 May 2008.
Revised on: 23 July 2008.
Accepted on: 22 August 2008.
___________________Journal of Spectroscopy---HINDAWI LTD
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