DOAJ – Directory of Open Access Journals

SJR - Scimago Journal & Country Rank

Scopus (Elsevier)

WorldCat

ROAD

HAL

EZB - Electronic Journals Library  

ZDB - Zeitschriften datenbank

Mirabel

Crossref

Wikidata

SUDOC – Sudoc Catalog

Open Alex

 

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Hathi Trust