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平台:
SpringerLink Journals - AutoHoldings
(Available from 2016/03/01 volume: 81 issue: 1 until 2017/12/01 volume: 82 issue: 4. Available from 1936/03/01 volume: 1 issue: 1 until 1996/12/01 volume: 61 issue: 4.)
SpringerLink Online Journals Archive
(Available from 1936 until 1996.)