Submitted on: 28 January 2007.
Revised on: 21 February 2007.
Accepted on: 13 April 2007.
___________________Journal of Mathematics Mechanics and Computer Science
Submitted on: 19 June 2000.
Revised on: 22 August 2000.
Accepted on: 16 October 2000.
___________________Journal of Mathematics Mechanics and Computer Science
Submitted on: 04 July 2013.
Revised on: 15 September 2013.
Accepted on: 19 October 2013.
___________________Journal of Mathematics Mechanics and Computer Science
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Submitted on: 09 December 2002.
Revised on: 23 February 2003.
Accepted on: 17 April 2003.
___________________Journal of Mathematics Mechanics and Computer Science
Submitted on: 31 October 2000.
Revised on: 30 November 2000.
Accepted on: 13 January 2001.
___________________Journal of Mathematics Mechanics and Computer Science
Submitted on: 21 July 2009.
Revised on: 20 September 2009.
Accepted on: 10 October 2009.
___________________Journal of Mathematics Mechanics and Computer Science
Submitted on: 14 September 2019.
Revised on: 12 December 2019.
Accepted on: 05 January 2020.
___________________Journal of Mathematics Mechanics and Computer Science
Submitted on: 01 November 2005.
Revised on: 02 December 2005.
Accepted on: 16 January 2006.
___________________Journal of Mathematics Mechanics and Computer Science
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