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Submitted on: 23 October 2007.
Revised on: 21 December 2007.
Accepted on: 16 February 2008.
___________________Journal of Hydrology and Hydromechanics
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Submitted on: 08 February 2004.
Revised on: 16 March 2004.
Accepted on: 30 March 2004.
___________________Journal of Hydrology and Hydromechanics
Submitted on: 09 November 2001.
Revised on: 15 January 2002.
Accepted on: 05 February 2002.
___________________Journal of Hydrology and Hydromechanics
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Submitted on: 29 August 2000.
Revised on: 22 October 2000.
Accepted on: 12 December 2000.
___________________Journal of Hydrology and Hydromechanics
Submitted on: 11 November 2018.
Revised on: 09 March 2019.
Accepted on: 13 April 2019.
___________________Journal of Hydrology and Hydromechanics