Submitted on: 02 February 1999.
Revised on: 02 May 1999.
Accepted on: 23 June 1999.
___________________Ekonomia i Srodowisko-Economics and Environment
Submitted on: 08 July 2004.
Revised on: 30 September 2004.
Accepted on: 31 October 2004.
___________________Ekonomia i Srodowisko-Economics and Environment
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Submitted on: 14 July 2024.
Revised on: 03 October 2024.
Accepted on: 29 November 2024.
___________________Ekonomia i Srodowisko-Economics and Environment
Submitted on: 10 September 2020.
Revised on: 30 October 2020.
Accepted on: 19 November 2020.
___________________Ekonomia i Srodowisko-Economics and Environment
Submitted on: 20 August 2022.
Revised on: 26 October 2022.
Accepted on: 08 December 2022.
___________________Ekonomia i Srodowisko-Economics and Environment