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Submitted on: 31 December 2013.
Revised on: 10 March 2014.
Accepted on: 06 April 2014.
___________________European Physical Journal H---SPRINGER HEIDELBERG
Submitted on: 07 July 2004.
Revised on: 18 October 2004.
Accepted on: 05 November 2004.
___________________European Physical Journal H---SPRINGER HEIDELBERG
Submitted on: 10 August 2017.
Revised on: 21 October 2017.
Accepted on: 13 November 2017.
___________________European Physical Journal H---SPRINGER HEIDELBERG
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Submitted on: 19 August 2023.
Revised on: 19 October 2023.
Accepted on: 30 October 2023.
___________________European Physical Journal H---SPRINGER HEIDELBERG
Submitted on: 19 September 1998.
Revised on: 16 January 1999.
Accepted on: 09 March 1999.
___________________European Physical Journal H---SPRINGER HEIDELBERG