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平台:
EBSCOhost OmniFile Full Text Select
(Available from 2004 until 2009.)
JSTOR Arts and Sciences XI
(Available from 1981/04/01 volume: 6 issue: 1. Most recent 5 year(s) not available.)
ProQuest Literature Online
(Available from 2004/04/01 until 2016/04/30.)