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Submitted on: 26 May 2017.
Revised on: 15 September 2017.
Accepted on: 01 October 2017.
___________________EUROPEAN PHYSICAL JOURNAL E---SPRINGER
Submitted on: 21 November 2009.
Revised on: 24 February 2010.
Accepted on: 03 April 2010.
___________________EUROPEAN PHYSICAL JOURNAL E---SPRINGER
Submitted on: 30 November 2013.
Revised on: 26 March 2014.
Accepted on: 15 April 2014.
___________________EUROPEAN PHYSICAL JOURNAL E---SPRINGER
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