Submitted on: 15 February 2009.
Revised on: 28 March 2009.
Accepted on: 06 April 2009.
Kemija u Industriji-Journal of Chemists and Chemical Engineers
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Submitted on: 27 November 2003.
Revised on: 21 December 2003.
Accepted on: 18 January 2004.
Kemija u Industriji-Journal of Chemists and Chemical Engineers
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Submitted on: 28 January 2001.
Revised on: 08 February 2001.
Accepted on: 06 March 2001.
Kemija u Industriji-Journal of Chemists and Chemical Engineers