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Submitted on: 29 August 2005.
Revised on: 05 October 2005.
Accepted on: 12 November 2005.
___________________Annals of GIS---TAYLOR & FRANCIS LTD
Submitted on: 28 December 2003.
Revised on: 08 March 2004.
Accepted on: 07 May 2004.
___________________Annals of GIS---TAYLOR & FRANCIS LTD
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Submitted on: 01 June 2005.
Revised on: 01 July 2005.
Accepted on: 12 July 2005.
___________________Annals of GIS---TAYLOR & FRANCIS LTD
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Submitted on: 14 October 2008.
Revised on: 12 November 2008.
Accepted on: 13 December 2008.
___________________Annals of GIS---TAYLOR & FRANCIS LTD
Submitted on: 10 February 2019.
Revised on: 25 April 2019.
Accepted on: 22 May 2019.
___________________Annals of GIS---TAYLOR & FRANCIS LTD
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