Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
67
Aarhus University: Research
30
PANGAEA - Data Publisher for Earth & Environmental Science
29
Digital.CSIC (Spanish National Research Council)
24
Unknown
24
Institute for Marine Research: Brage IMR
22
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
19
Directory of Open Access Journals: DOAJ Articles
16
Instituto Español de Oceanografía: e-IEO
16
University of Washington, Seattle: Digital Collections
15
Dryad Digital Repository (Duke University)
13
University of Copenhagen: Research
13
Biodiversity Heritage Library (BHL)
10
NOAA NCEI Environmental Data Archive (via DataONE)
10
MDPI Open Access Publishing
7
eCite UTAS (University of Tasmania)
7
Australian National University: ANU Digital Collections
6
Technical University of Denmark: DTU Orbit
6
UNESDOC - UNESCO Digital Library
6
University of Calgary Journal Hosting
6
Research Workspace (via DataONE)
5
Zenodo
5
American Museum of Natural History: AMNH scientific publications
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Hathi Trust Digital Library
4
Defense Technical Information Center: DTIC Technical Reports database
3
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
3
OpenAgrar (OA)
3
Research at Universidade Católica Portuguesa (Ciência-UCP)
3
Universidade Católica Portuguesa: Veritati - Repositório Institucional
3
Universidade of Minho: RepositóriUM
3
University of Southern Denmark Research Portal
3
University of Tasmania: UTas ePrints
3
University of Tromsø: Munin Open Research Archive
3
University of Windsor, Ontario: Scholarship at UWindsor
3
Central Marine Fisheries Research Institute, Kochi, India: Eprints@CMFRI
2
Magnolia press
2
Portail HAL Institut Agro
2
PubMed Central (PMC)
2
University College London: UCL Discovery
2
University of Iceland: Peer Reviewed Journals
2
University of Victoria (Canada): UVicDSpace
2
University of Vienna: u:theses
2
Université de Nantes: HAL-UNIV-NANTES
2
Wageningen UR (University & Research Centre): Digital Library
2
Agrocampus Ouest: HAL
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Bellevue University: Digital Archive Collection
1
BioMed Central
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
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