Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
74
Digital Repository of Scientific Institutes (RCIN)
53
Wageningen UR (University & Research Centre): Digital Library
52
Directory of Open Access Journals: DOAJ Articles
51
Norwegian Institute for Nature Research: Brage NINA
40
RUcore - Rutgers University Community Repository
31
Unknown
26
Dryad Digital Repository (Duke University)
21
Zenodo
19
Norsk Polarinstitutt: Brage NP
17
Norwegian Polar Institute: Brage NP
17
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
14
Knowledge Network for Biocomplexity (via DataONE)
11
Université de Nantes: HAL-UNIV-NANTES
11
Environmental Data Initiative (via DataONE)
10
MDPI Open Access Publishing
9
OpenEdition
9
Research Workspace (via DataONE)
7
University of Calgary Journal Hosting
7
University of Groningen research database
7
Altai State University: Scientific Journals of ASU
6
Ohio State University (OSU): Knowledge Bank
6
SciELO Brazil (Scientific Electronic Library Online)
5
University of North Texas: UNT Digital Library
5
Uppsala University: Publications (DiVA)
5
Aarhus University: Research
4
Charles University CU Digital repository
4
HAL - Université de La Rochelle
4
Pensoft Publishers
4
The Portal to Texas History (University of North Texas)
4
University of Nebraska-Lincoln: DigitalCommons@UNL
4
University of Washington, Seattle: Digital Collections
4
Apollo - University of Cambridge Repository
3
Australian National University: ANU Digital Collections
3
Bioline International (Reference Center on Environmental Information, Brazil)
3
Croatian Digital Theses Repository (National and University Library in Zagreb)
3
Czech Academy of Sciences: dKNAV
3
Digital Library of University of Maribor
3
Indiana University - Purdue University Indianapolis: IUPUI Scholar Works
3
Lund University Publications (LUP)
3
Natural Resources Institute Finland: Jukuri
3
Repositório Digital do IPEN (Instituto de Pesquisas Energéticas e Nucleares)
3
University of Liège: ORBi (Open Repository and Bibliography)
3
University of Toronto: Research Repository T-Space
3
Université de Montpellier: HAL
3
Washington State University: WSU Libraries Digital Collections
3
AJOL - African Journals Online
2
CESSDA DC Data Catalogue (Consortium of European Social Science Data Archives)
2
CIRAD: HAL (Agricultural Research for Development)
2
DRO - Deakin Research Online
2
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