Similar to HAL_(公開アーカイブ)

HAL (open archive)

J-STAGE

Biodiversity Heritage Library

BioOne

CINAHL

CNKI

Contextual Query Language

DBLP

E-International Relations

Embase

Google Scholar

Internet Speculative Fiction Database

Library Genesis

PubMed

ScienceDirect

Scopus

Semantic Scholar

TreeBASE

Web of Science

What Works Clearinghouse

WorldCat

ZbMATH Open

Espacenet

Google Books