Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
149
PANGAEA - Data Publisher for Earth & Environmental Science
134
Directory of Open Access Journals: DOAJ Articles
52
University of Tromsø: Munin Open Research Archive
28
Unknown
28
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
21
LeibnizOpen (The Leibniz Association)
20
Copernicus Publications: E-Journals
19
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
19
Université de Nantes: HAL-UNIV-NANTES
17
Wiley Online Library
17
Institut national des sciences de l'Univers: HAL-INSU
15
Niedersächsisches Online-Archiv NOA
15
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
12
University of Bergen: Bergen Open Research Archive (BORA-UiB)
10
PubMed Central (PMC)
9
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
8
Cambridge University Press
8
Digital.CSIC (Spanish National Research Council)
8
Polar Research (E-Journal)
8
University of Copenhagen: Research
8
Aarhus University: Research
7
Ghent University Academic Bibliography
7
Instituto Español de Oceanografía: e-IEO
7
Norwegian Institute for Nature Research: Brage NINA
7
Wiley Online Library (via Crossref)
7
EPHE (Ecole pratique des hautes études, Paris): HAL
6
Archives ouvertes de Paris-Saclay
5
Institute for Marine Research: Brage IMR
5
ORA - Oxford University Research Archive
5
Technical University of Denmark: DTU Orbit
5
University of the Highlands and Islands: Research Database of UHI
5
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
5
Zenodo
5
HAL Sorbonne Université
4
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
4
HighWire Press (Stanford University)
4
MACAU: Open Access Repository of Kiel University
4
Magnolia press
4
NTNU Open Archive (Norwegian University of Science and Technology)
4
University of Groningen research database
4
University of Potsdam: publish.UP
4
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
3
Apollo - University of Cambridge Repository
3
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
3
HAL Portal Paul-Valéry University Montpellier 3
3
HELDA – University of Helsinki Open Repository
3
Lund University Publications (LUP)
3
NILU – Norwegian Institute for Air Research: NILU Brage
3
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University)
3
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