Submitted on: 17 September 1999.
Revised on: 13 December 1999.
Accepted on: 10 February 2000.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
Submitted on: 15 May 2019.
Revised on: 14 August 2019.
Accepted on: 30 August 2019.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
Submitted on: 13 February 2005.
Revised on: 27 May 2005.
Accepted on: 09 July 2005.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
Submitted on: 29 August 2002.
Revised on: 08 November 2002.
Accepted on: 31 December 2002.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
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Submitted on: 06 November 2005.
Revised on: 06 January 2006.
Accepted on: 16 January 2006.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
Submitted on: 01 March 2022.
Revised on: 05 April 2022.
Accepted on: 02 June 2022.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
Submitted on: 20 August 2010.
Revised on: 30 November 2010.
Accepted on: 01 January 2011.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
Submitted on: 18 August 2002.
Revised on: 21 October 2002.
Accepted on: 20 December 2002.
___________________Acta Chemica Iasi---ALEXANDRU IOAN CUZA UNIV PRESS, ALEXANDRU IOAN CUZA UNIV IASI
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