Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
19
Directory of Open Access Journals: DOAJ Articles
17
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
11
LaCRIS - University of Lapland Current Research System
10
Arctic Data Center (via DataONE)
9
Unknown
9
MDPI Open Access Publishing
6
CyberLeninka (Scientific Electronic Library)
5
PubMed Central (PMC)
4
University of Tromsø: Munin Open Research Archive
4
Université de Nantes: HAL-UNIV-NANTES
4
IOP Publishing
3
ePLUS - Open Access Publikationsserver der Universität Salzburg
3
Altai State University: Scientific Journals of ASU
2
NORA (National aggregator of open repositories of Russian universities)
2
Norwegian Polar Data Centre
2
ORA - Oxford University Research Archive
2
Polar Research (E-Journal)
2
RePEc (Research Papers in Economics)
2
Siberian Federal University: Archiv Elektronnych SFU
2
University College London: UCL Discovery
2
University of Calgary Journal Hosting
2
AgroParisTech: HAL (Institut des sciences et industries du vivant et de l'environnement)
1
Archives ouvertes de Paris-Saclay
1
BORIS (Bern Open Repository and Information System, University of Bern)
1
Chalmers University of Technology: Chalmers research
1
Copernicus Publications: E-Journals
1
Cours en ligne (CEL): HAL
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
Federation of Finnish Learned Societies: Scientific Journals Online
1
HAL Sorbonne Université
1
Hereon Publications (Helmholtz-Zentrum)
1
Inalco (Institut National des Langues et Civilisations Orientales): HAL
1
Jultika - University of Oulu repository
1
Liverpool University Press (via Crossref)
1
Masaryk University Journals
1
Max Planck Society: MPG.PuRe
1
Niedersächsisches Online-Archiv NOA
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Springer Nature (via Crossref)
1
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive
1
The Royal Society: Figshare
1
Umeå University: Publications (DiVA)
1
University of Tyumen: UTMN Repository
1
Ural Federal University (URFU): ELAR
1
White Horse Press Journals (via Crossref)
1