By Tantawi Reda S.   Nassar T. E. I.   in Chinese Physics Letters

ISSN:0256-307X|31|8|83402-83406

IOP Publishing‎(2014)‎

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By Nassar T E I   Tantawi Reda S   in Physica Scripta

ISSN:1402-4896|90|1|15402-15412

IOP Publishing‎(2015)‎

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