ArchiveVolume 5, Issue 2, June 2020
Oleksandr Ostos, Yaroslav Zhuk
Pages: 20-27     Published Online: Apr. 23, 2020
DOI: 10.11648/j.aas.20200502.11        Views 68      Downloads 24
Sun Yang, Peng Xinya, Ding Zexuan
Pages: 28-34     Published Online: May 14, 2020
DOI: 10.11648/j.aas.20200502.12        Views 29      Downloads 10
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