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Submitted on: 19 October 2001.
Revised on: 12 December 2001.
Accepted on: 08 January 2002.
___________________ANNALS OF REGIONAL SCIENCE---SPRINGER
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Submitted on: 25 March 2009.
Revised on: 15 June 2009.
Accepted on: 02 August 2009.
___________________ANNALS OF REGIONAL SCIENCE---SPRINGER
Submitted on: 16 October 2005.
Revised on: 26 January 2006.
Accepted on: 07 February 2006.
___________________ANNALS OF REGIONAL SCIENCE---SPRINGER
Submitted on: 19 March 2002.
Revised on: 28 May 2002.
Accepted on: 04 July 2002.
___________________ANNALS OF REGIONAL SCIENCE---SPRINGER
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Submitted on: 04 October 2024.
Revised on: 04 December 2024.
Accepted on: 09 January 2025.
___________________ANNALS OF REGIONAL SCIENCE---SPRINGER
Submitted on: 07 November 2011.
Revised on: 30 November 2011.
Accepted on: 23 December 2011.
___________________ANNALS OF REGIONAL SCIENCE---SPRINGER
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