Content Provider
Directory of Open Access Journals: DOAJ Articles
75
University of Tromsø: Munin Open Research Archive
33
Unknown
26
DataCite Metadata Store (German National Library of Science and Technology)
25
LeibnizOpen (The Leibniz Association)
19
Norwegian Institute for Nature Research: Brage NINA
15
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
11
University College London: UCL Discovery
11
HELDA – University of Helsinki Open Repository
10
Wiley Online Library
9
Dryad Digital Repository (Duke University)
8
Institute for Marine Research: Brage IMR
8
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
8
Université de Nantes: HAL-UNIV-NANTES
8
Wiley Online Library (via Crossref)
8
Frontiers (Publisher)
7
Niedersächsisches Online-Archiv NOA
7
University of Bergen: Bergen Open Research Archive (BORA-UiB)
7
Zenodo
7
NTNU Open Archive (Norwegian University of Science and Technology)
6
RePEc (Research Papers in Economics)
6
Institut national des sciences de l'Univers: HAL-INSU
5
Jultika - University of Oulu repository
5
Apollo - University of Cambridge Repository
4
Digital.CSIC (Spanish National Research Council)
4
Ghent University Academic Bibliography
4
IOP Publishing (via Crossref)
4
Polar Research (E-Journal)
4
University of Groningen research database
4
University of St Andrews: Digital Research Repository
4
Wageningen UR (University & Research Centre): Digital Library
4
Aarhus University: Research
3
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
3
Canadian Science Publishing (via Crossref)
3
DergiPark Akademik (E-Journals)
3
Masaryk University Journals
3
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive
3
Umeå University: Publications (DiVA)
3
University of Calgary Journal Hosting
3
University of St Andrews: Research Portal
3
University of Tromsø: Septentrio Academic Publishing
3
White Rose Research Online (Universities of Leeds, Sheffield & York)
3
Canadian Science Publishing
2
De Gruyter (via Crossref)
2
EPHE (Ecole pratique des hautes études, Paris): HAL
2
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2
Høgskolen i Innlandet: Brage INN
2
IOP Publishing
2
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria)
2
Lund University Publications (LUP)
2
more ...