Content Provider
NOAA NCEI Environmental Data Archive (via DataONE)
47
DataCite Metadata Store (German National Library of Science and Technology)
26
Directory of Open Access Journals: DOAJ Articles
23
Research Workspace (via DataONE)
13
NASA Technical Reports Server (NTRS)
12
Frontiers: Figshare
10
MDPI Open Access Publishing
10
Arctic Data Center (via DataONE)
8
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
7
Defense Technical Information Center: DTIC Technical Reports database
6
University of California: eScholarship
6
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
4
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
4
Apollo - University of Cambridge Repository
3
Institut national des sciences de l'Univers: HAL-INSU
3
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
3
University of North Texas: UNT Digital Library
3
Unknown
3
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
2
Clark University: Clark Digital Commons
2
Digital Commons University of South Florida (USF)
2
Digital.CSIC (Spanish National Research Council)
2
Georgia Institute of Technology: SMARTech - Scholarly Materials and Research at Georgia Tech
2
Lund University Publications (LUP)
2
PQDT Open: Open Access Dissertations and Theses (ProQuest)
2
The Hong Kong University of Science and Technology: HKUST Institutional Repository
2
The University of Queensland: UQ eSpace
2
The University of Southern Mississippi: The Aquila Digital Community
2
University of Alaska: ScholarWorks@UA
2
University of Central Florida (UCF): STARS (Showcase of Text, Archives, Research & Scholarship)
2
University of Colorado, Boulder: CU Scholar
2
University of Nebraska-Lincoln: DigitalCommons@UNL
2
University of South Florida St. Petersburg: Digital USFSP
2
Xiamen University Institutional Repository
2
Archives ouvertes de Paris-Saclay
1
California State University (CSU): DSpace
1
Carolina Digital Repository (UNC - University of North Carolina)
1
Chapman University Digital Commons
1
Curtin University: espace
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
Dalhousie University: DalSpace Institutional Repository
1
Duke University Libraries: DukeSpace
1
ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile)
1
HAL Sorbonne Université
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
Institutional Repository of Leibniz Universität Hannover
1
Météo-France: HAL
1
National Institute of Polar Research Repository, Japan
1
National Research Council Canada: NRC Publications Archive
1
North-West University, South Africa: Boloka (NWU-IR)
1
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