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Anhui Univ Finance & Econ, Res Ctr Stat Management, Bengbu, Peoples R ChinaAnhui Univ Finance & Econ, Res Ctr Stat Management, Bengbu, Peoples R China
Song, Malin
Wang, Shuhong
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Ocean Univ China, Qingdao, Peoples R ChinaAnhui Univ Finance & Econ, Res Ctr Stat Management, Bengbu, Peoples R China