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社会科学前沿 Vol.8 No.9, September 6 2019, PDF, HTML, XML DOI:10.12677/ASS.2019.89209 被引量
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应用数学进展 Vol.11 No.9, September 7 2022, PDF, HTML, XML DOI:10.12677/AAM.2022.119654 被引量
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