Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
61
Directory of Open Access Journals: DOAJ Articles
56
Defense Technical Information Center: DTIC Technical Reports database
48
Unknown
38
Arctic Data Center (via DataONE)
32
PANGAEA - Data Publisher for Earth & Environmental Science
19
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
18
MDPI Open Access Publishing
14
Université de Nantes: HAL-UNIV-NANTES
14
Institut national des sciences de l'Univers: HAL-INSU
12
Zenodo
11
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
10
Université Grenoble Alpes: HAL
9
Digital.CSIC (Spanish National Research Council)
8
Frontiers: Figshare
8
Naval Postgraduate School: Calhoun
7
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
7
Dartmouth Digital Commons (Dartmouth College)
6
University of North Texas: UNT Digital Library
6
Université Savoie Mont Blanc: HAL
6
SINTEF Open (Brage)
5
Australian National University: ANU Digital Collections
4
Instituto Español de Oceanografía: e-IEO
4
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
4
National Research Council Canada: NRC Publications Archive
4
National University of Ireland (NUI), Galway: ARAN
4
Technical University of Denmark: DTU Orbit
4
University of Copenhagen: Research
4
University of Otago: Research Archive (OUR Archive)
4
Aarhus University: Research
3
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
3
CyberLeninka (Scientific Electronic Library)
3
Ghent University Academic Bibliography
3
Luleå University of Technology Publications (DiVA)
3
Météo-France: HAL
3
NTNU Open Archive (Norwegian University of Science and Technology)
3
Open Access Victoria University of Wellington / Te Herenga Waka
3
Research Data Australia (Australian National Data Service - ANDS)
3
SEANOE (Sea scientific open data publication)
3
The Royal Society: Figshare
3
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
3
University of Bergen: Bergen Open Research Archive (BORA-UiB)
3
Université Toulouse III - Paul Sabatier: HAL-UPS
3
Utrecht University Repository
3
theses.fr
3
ADDI: Repositorio Institucional de la Universidad del País Vasco (UPV)
2
AMUR - Adam Mickiewicz University Repository, Poznan
2
ARUd'A - Archivio Istituzionale della ricerca dell'università Chieti-Pescara (IRIS)
2
Adam Mickiewicz University in Poznań: PRESSto
2
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