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Submitted on: 18 November 2003.
Revised on: 22 December 2003.
Accepted on: 04 February 2004.
___________________Baltic Region---IMMANUEL KANT BALTIC FEDERAL UNIV
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Submitted on: 16 June 2001.
Revised on: 14 October 2001.
Accepted on: 05 December 2001.
___________________Baltic Region---IMMANUEL KANT BALTIC FEDERAL UNIV
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Submitted on: 17 November 2022.
Revised on: 02 February 2023.
Accepted on: 13 February 2023.
___________________Baltic Region---IMMANUEL KANT BALTIC FEDERAL UNIV
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