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Submitted on: 03 May 2008.
Revised on: 12 June 2008.
Accepted on: 08 July 2008.
___________________International Journal of GEOMATE
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Submitted on: 06 July 2000.
Revised on: 15 October 2000.
Accepted on: 29 November 2000.
___________________International Journal of GEOMATE
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Submitted on: 05 November 2016.
Revised on: 26 January 2017.
Accepted on: 03 March 2017.
___________________International Journal of GEOMATE