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平台:
EBSCOhost Academic Search Complete
(Available from 1999/02/01. Most recent 1 year(s) not available.)
EBSCOhost STM Source
(Available from 1999/02/01. Most recent 1 year(s) not available.)
SpringerLink Journals - AutoHoldings
(Available from 2016/02/01 volume: 55 issue: 1 until 2017/12/01 volume: 56 issue: 8. Available from 1960/04/01 volume: 1 issue: 1 until 1996/12/01 volume: 35 issue: 4.)
SpringerLink Online Journals Archive
(Available from 1960/01/01 volume: 1 issue: 1 until 1996/12/31 volume: 35 issue: 4.)