Content Provider
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MDPI Open Access Publishing
4
MSpace at the University of Manitoba
1
Magnolia press
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
1
NASA Technical Reports Server (NTRS)
8
NOAA NCEI Environmental Data Archive (via DataONE)
643
National Institute of Polar Research Repository, Japan
3
Natural Environment Research Council: NERC Open Research Archive
3
Naval Postgraduate School: Calhoun
3
Niedersächsisches Online-Archiv NOA
7
North Dakota State University (NDSU): Digital Horizons
1
Nova Southeastern University: NSU Works
1
ORA - Oxford University Research Archive
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Old Dominion University: ODU Digital Commons
7
OpenKnowledge@NAU (Northern Arizona University, Flagstaff)
1
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
1
Oxford University Press (via Crossref)
2
PANGAEA - Data Publisher for Earth & Environmental Science
15
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
4
Polar Research (E-Journal)
1
PubMed Central (PMC)
5
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences)
4
Research Workspace (via DataONE)
79
Roger Williams University: DOCS@RWU
1
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
3
ScienceDirect (Elsevier - via Crossref)
8
ScienceDirect (Elsevier)
2
Springer Nature
3
Springer Nature (via Crossref)
8
Stockholm University: Publications (DiVA)
1
The College of Wooster: Open Works
1
The Hong Kong University of Science and Technology: HKUST Institutional Repository
4
The University of Nottingham: Nottingham ePrints
1
The University of Queensland: UQ eSpace
1
The University of Southern Mississippi: The Aquila Digital Community
1
USGS Science Data Catalog (via DataONE)
17
University of Alaska: ScholarWorks@UA
4
University of British Columbia: cIRcle - UBC's Information Repository
1
University of Calgary Journal Hosting
13
University of California: eScholarship
1
University of Copenhagen: Research
1
University of Maryland: Digital Repository (DRUM)
1
University of Massachusetts: ScholarWorks@UMass Amherst
2
University of Nebraska-Lincoln: DigitalCommons@UNL
3
University of New Hampshire: Scholars Repository
3
University of North Texas: UNT Digital Library
1
University of Nottingham: Repository@Nottingham
1
University of South Florida St. Petersburg: Digital USFSP
1
University of Southampton: e-Prints Soton
3
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