Submitted on: 22 December 2010.
Revised on: 16 March 2011.
Accepted on: 07 May 2011.
___________________INTERNATIONAL JOURNAL OF COAL GEOLOGY
Submitted on: 28 September 2018.
Revised on: 20 January 2019.
Accepted on: 07 February 2019.
___________________INTERNATIONAL JOURNAL OF COAL GEOLOGY
Submitted on: 07 June 2007.
Revised on: 05 July 2007.
Accepted on: 15 August 2007.
___________________INTERNATIONAL JOURNAL OF COAL GEOLOGY
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Submitted on: 21 April 2018.
Revised on: 30 May 2018.
Accepted on: 29 June 2018.
___________________INTERNATIONAL JOURNAL OF COAL GEOLOGY
Submitted on: 21 September 2004.
Revised on: 30 December 2004.
Accepted on: 26 February 2005.
___________________INTERNATIONAL JOURNAL OF COAL GEOLOGY
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Submitted on: 31 May 2022.
Revised on: 05 August 2022.
Accepted on: 02 September 2022.
___________________INTERNATIONAL JOURNAL OF COAL GEOLOGY
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