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Submitted on: 18 May 2004.
Revised on: 05 August 2004.
Accepted on: 29 August 2004.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
Submitted on: 20 October 2000.
Revised on: 25 December 2000.
Accepted on: 01 February 2001.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
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Submitted on: 23 August 2018.
Revised on: 23 October 2018.
Accepted on: 11 December 2018.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
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