Submitted on: 19 July 2006.
Revised on: 20 September 2006.
Accepted on: 18 October 2006.
___________________Journal of Dynamics and Differential Equations
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Submitted on: 20 March 2019.
Revised on: 06 July 2019.
Accepted on: 31 July 2019.
___________________Journal of Dynamics and Differential Equations
Submitted on: 18 July 2020.
Revised on: 31 August 2020.
Accepted on: 16 September 2020.
___________________Journal of Dynamics and Differential Equations
Submitted on: 20 June 2010.
Revised on: 14 September 2010.
Accepted on: 08 October 2010.
___________________Journal of Dynamics and Differential Equations
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Submitted on: 13 November 2017.
Revised on: 26 December 2017.
Accepted on: 06 February 2018.
___________________Journal of Dynamics and Differential Equations
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Submitted on: 13 March 2015.
Revised on: 02 July 2015.
Accepted on: 22 July 2015.
___________________Journal of Dynamics and Differential Equations
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