Submitted on: 17 June 2020.
Revised on: 18 September 2020.
Accepted on: 24 October 2020.
___________________GEOMORPHOLOGY---ELSEVIER
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Submitted on: 20 November 2010.
Revised on: 03 March 2011.
Accepted on: 26 April 2011.
___________________GEOMORPHOLOGY---ELSEVIER
Submitted on: 29 July 2003.
Revised on: 29 October 2003.
Accepted on: 25 November 2003.
___________________GEOMORPHOLOGY---ELSEVIER
Submitted on: 08 May 2006.
Revised on: 08 June 2006.
Accepted on: 30 July 2006.
___________________GEOMORPHOLOGY---ELSEVIER
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Submitted on: 26 July 2009.
Revised on: 01 September 2009.
Accepted on: 12 September 2009.
___________________GEOMORPHOLOGY---ELSEVIER