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Submitted on: 13 March 2001.
Revised on: 09 May 2001.
Accepted on: 04 June 2001.
___________________EUROPEAN PHYSICAL JOURNAL A---SPRINGER
Submitted on: 08 November 2015.
Revised on: 22 February 2016.
Accepted on: 20 March 2016.
___________________EUROPEAN PHYSICAL JOURNAL A---SPRINGER
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http://reply.papertrans.cn/1/94/9346/9346-25.png
Submitted on: 26 September 2010.
Revised on: 28 December 2010.
Accepted on: 14 February 2011.
___________________EUROPEAN PHYSICAL JOURNAL A---SPRINGER
Submitted on: 16 February 2013.
Revised on: 27 March 2013.
Accepted on: 20 May 2013.
___________________EUROPEAN PHYSICAL JOURNAL A---SPRINGER
http://reply.papertrans.cn/1/94/9346/9346-28.png
http://reply.papertrans.cn/1/94/9346/9346-29.png
Submitted on: 09 October 2009.
Revised on: 11 November 2009.
Accepted on: 13 December 2009.
___________________EUROPEAN PHYSICAL JOURNAL A---SPRINGER