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Submitted on: 02 December 2013.
Revised on: 12 February 2014.
Accepted on: 19 March 2014.
___________________Applied and Computational Mathematics
Submitted on: 13 October 2019.
Revised on: 10 February 2020.
Accepted on: 26 March 2020.
___________________Applied and Computational Mathematics
Submitted on: 17 December 2008.
Revised on: 31 March 2009.
Accepted on: 11 May 2009.
___________________Applied and Computational Mathematics
Submitted on: 05 September 2011.
Revised on: 24 October 2011.
Accepted on: 04 November 2011.
___________________Applied and Computational Mathematics
Submitted on: 07 April 2024.
Revised on: 01 August 2024.
Accepted on: 23 September 2024.
___________________Applied and Computational Mathematics
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Submitted on: 29 July 2016.
Revised on: 29 August 2016.
Accepted on: 12 September 2016.
___________________Applied and Computational Mathematics
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