Similar to WorldCat
歴史図書総目録
BookFi
CINAHL
CINAHLContextual Query Language
Contextual Query Language
DBLP
DBLP
Embase
Embase
HAL (公開アーカイブ)
HAL (open archive)
Internet Speculative Fiction Database
Internet Speculative Fiction Database
Library Genesis
Library Genesis
PubMed
PubMed
ScienceDirect
ScienceDirect
Scopus
ScopusSemantic Scholar
Semantic ScholarTreeBASE
TreeBASE
Web of Science
Web of ScienceWhat Works Clearinghouse
What Works Clearinghouse
ZbMATH
ZbMATH Open
I-Scover
医中誌Web
Espacenet
Espacenet
カルチュラル・ジャパン
Google ブックス
Google Books
ゲイル (出版社)
Gale (publisher)
CiNii
CiNii
Sci-Hub
Sci-Hub
Journal@rchive
J-GLOBAL
J-STAGE
J-STAGE