Indexing
Baidu Scholar
Bayerische Staatsbibliothek
BDS
BoD
Bowker Book Data
Ciando
CNKI Scholar (China National Knowledge Infrastructure)
Dimensions
EBSCO
ExLibris
Google Books
Google Scholar
Naviga
ReadCube
Semantic Scholar
TDOne (TDNet)
WorldCat (OCLC)
X-MOL
