China Scientific and Technical Papers and Citations Database (CSTPCD)
Chinese Academy of Social Sciences Evaluation Studies (CASSES)
Directory of Open Access Journals (DOAJ)
EBSCO Essentials
EBSCOhost
Emerging Sources Citation Index (ESCI)
Institute of Scientific and Technical Information of China (ISTIC)
ProQuest
SAO/NASA Astrophysics Data System (ADS)
Scopus
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