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Submitted on: 20 February 2005.
Revised on: 03 May 2005.
Accepted on: 20 May 2005.
___________________Journal of Mathematics in Industry
Submitted on: 31 May 2008.
Revised on: 08 September 2008.
Accepted on: 24 October 2008.
___________________Journal of Mathematics in Industry
Submitted on: 19 April 2001.
Revised on: 05 July 2001.
Accepted on: 26 July 2001.
___________________Journal of Mathematics in Industry
Submitted on: 27 July 2013.
Revised on: 17 November 2013.
Accepted on: 15 January 2014.
___________________Journal of Mathematics in Industry
Submitted on: 21 May 2013.
Revised on: 02 July 2013.
Accepted on: 26 August 2013.
___________________Journal of Mathematics in Industry
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Submitted on: 28 July 2021.
Revised on: 03 October 2021.
Accepted on: 18 November 2021.
___________________Journal of Mathematics in Industry
Submitted on: 08 April 2012.
Revised on: 18 May 2012.
Accepted on: 15 July 2012.
___________________Journal of Mathematics in Industry
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