ORMS
Research on Profitability Difference Based on the Theil Index
LIU Xiao-hui, PENG Xiao-hong, CHI Guo-tai, LI Gang, GUO Yu-xin, CHEN Kai
Operations Research and Management Science . 2020, (7): 123 -130 .  DOI: 10.12005/orms.2020.0181

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