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http://reply.papertrans.cn/4/302/30114/30114-12.png
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Submitted on: 11 December 2002.
Revised on: 12 January 2003.
Accepted on: 22 January 2003.
Ukrainian Journal of Physics
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Submitted on: 21 December 2021.
Revised on: 23 January 2022.
Accepted on: 28 January 2022.
Ukrainian Journal of Physics
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