Submitted on: 26 June 1999.
Revised on: 22 August 1999.
Accepted on: 15 October 1999.
___________________Chemistry & Chemical Technology
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Submitted on: 16 September 2024.
Revised on: 12 October 2024.
Accepted on: 17 November 2024.
___________________Chemistry & Chemical Technology
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Submitted on: 22 April 2006.
Revised on: 21 June 2006.
Accepted on: 29 July 2006.
___________________Chemistry & Chemical Technology
Submitted on: 11 March 2020.
Revised on: 18 April 2020.
Accepted on: 11 May 2020.
___________________Chemistry & Chemical Technology