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Submitted on: 15 May 2024.
Revised on: 12 June 2024.
Accepted on: 04 August 2024.
___________________Communications in Nonlinear Science and Numerical Simulation
Submitted on: 24 November 2011.
Revised on: 04 February 2012.
Accepted on: 20 February 2012.
___________________Communications in Nonlinear Science and Numerical Simulation
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Submitted on: 17 March 2004.
Revised on: 11 May 2004.
Accepted on: 05 July 2004.
___________________Communications in Nonlinear Science and Numerical Simulation
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