Submitted on: 25 May 2004.
Revised on: 28 August 2004.
Accepted on: 17 September 2004.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
Submitted on: 19 February 2022.
Revised on: 02 June 2022.
Accepted on: 04 July 2022.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
Submitted on: 16 May 2008.
Revised on: 25 July 2008.
Accepted on: 24 August 2008.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
Submitted on: 16 September 2020.
Revised on: 28 November 2020.
Accepted on: 20 December 2020.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
Submitted on: 25 February 2014.
Revised on: 27 May 2014.
Accepted on: 14 June 2014.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
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