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平台:
DOAJ Directory of Open Access Journals
(Available from 2007.)
EBSCOhost Academic Search Complete
(Available from 2008/12/01.)
EBSCOhost STM Source
(Available from 2008/12/01.)
ProQuest Earth, Atmospheric & Aquatic Science Database
(Available from 2007/01/01 until 2011/12/31. Available from 2013/01/01.)
ProQuest SciTech Premium Collection
(Available from 2007/01/01 until 2011/12/31. Available from 2013/01/01.)