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Nanjing Normal Univ, Inst Finance & Stat, Sch Math Sci, Nanjing, Peoples R China
Nanjing Normal Univ, Inst Finance & Stat, Sch Math Sci, Nanjing 210023, Peoples R China Nanjing Normal Univ, Inst Finance & Stat, Sch Math Sci, Nanjing, Peoples R China