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Submitted on: 18 June 2014.
Revised on: 24 July 2014.
Accepted on: 12 August 2014.
Nonlinear Analysis-Modelling and Control
Submitted on: 28 July 2007.
Revised on: 10 September 2007.
Accepted on: 08 October 2007.
Nonlinear Analysis-Modelling and Control
Submitted on: 26 June 2007.
Revised on: 24 July 2007.
Accepted on: 07 August 2007.
Nonlinear Analysis-Modelling and Control
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