Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,799
IEDA: Marine-Geo Digital Library (via DataONE)
47
Zenodo
42
Unknown
31
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
27
Directory of Open Access Journals: DOAJ Articles
25
Università degli Studi di Napoli "Parthenope": CINECA IRIS
16
Natural Environment Research Council: NERC Open Research Archive
14
PANGAEA - Data Publisher for Earth & Environmental Science
12
University of California: eScholarship
11
NOAA NCEI Environmental Data Archive (via DataONE)
9
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
8
Caltech Authors (California Institute of Technology)
8
Copernicus Publications: E-Journals
8
Research Data Australia (Australian National Data Service - ANDS)
8
Université de Nantes: HAL-UNIV-NANTES
8
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
7
Università degli Studi di Genova: CINECA IRIS
7
Niedersächsisches Online-Archiv NOA
6
Open Access Victoria University of Wellington / Te Herenga Waka
6
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
6
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
6
Digital.CSIC (Spanish National Research Council)
5
MDPI Open Access Publishing
5
NASA Technical Reports Server (NTRS)
5
National Institute of Polar Research Repository, Japan
5
PubMed Central (PMC)
5
Victoria University of Wellington: ResearchArchive
5
W&M ScholarWorks
5
eCite UTAS (University of Tasmania)
5
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
4
Institut national des sciences de l'Univers: HAL-INSU
4
Magnolia press
4
Old Dominion University: ODU Digital Commons
4
University of Tasmania: UTas ePrints
4
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
4
Université Grenoble Alpes: HAL
4
ARPI - Archivio della Ricerca dell'Università di Pisa
3
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
3
Cambridge University Press
3
Columbia University: Academic Commons
3
Defense Technical Information Center: DTIC Technical Reports database
3
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
3
Frontiers (Publisher)
3
Max Planck Society: MPG.PuRe
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
ScienceDirect (Elsevier - via Crossref)
3
Texas A&M University Digital Repository
3
The University of Queensland: UQ eSpace
3
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