Submitted on: 29 November 2012.
Revised on: 02 January 2013.
Accepted on: 26 February 2013.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
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Submitted on: 16 August 2013.
Revised on: 21 October 2013.
Accepted on: 09 November 2013.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
Submitted on: 03 December 2004.
Revised on: 28 February 2005.
Accepted on: 16 April 2005.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
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