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平台:
DOAJ Directory of Open Access Journals
(Available from 2014.)
Nature Journals Free
(Available from 2013/12/01 volume: 1 issue: 1.)
SpringerLink Open Access
(Available from 2022/01/01 volume: 3 issue: 1.)
中國期刊全文資料庫(全)
(Available from 2013 issue: 1.)