Baidu Scholar
BazEkon
BazHum
CEEOL
CEJSH
Celdes
CiteFactor
CNKI Scholar (China National Knowledge Infrastructure)
CNPIEC
CROSSREF
DOAJ
EBSCO (relevant databases)
EBSCO Discovery Service
ERIH PLUS
Google Scholar
Index Copernicus
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Ministry of Education and Science
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Proquest (relevant databases)
ReadCube Research Papers in Economics (RePEc)
ResearchGate Summon (Serials Solutions/ProQuest)
SCOPUS
TDOne (TDNet)
TEMA Technik und Management
Ulrich's
WorldCat (OCLC)
WoS (Emerging Sources Citation Index)
