Economic Systems Research. 1993;5(4):433-436. doi: 10.1080/09535319300000034 Q13.12025
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DOI: 10.1080/09535319300000034
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Economic Systems Research. 1993;5(4):433-436. doi: 10.1080/09535319300000034 Q13.12025
DOI: 10.1080/09535319300000034
摘要 查看摘要