Content Provider
Natural Environment Research Council: NERC Open Research Archive
323
Directory of Open Access Journals: DOAJ Articles
310
LeibnizOpen (The Leibniz Association)
194
Cambridge University Press
152
University of California: eScholarship
137
DataCite Metadata Store (German National Library of Science and Technology)
119
Unknown
119
Niedersächsisches Online-Archiv NOA
109
ScienceDirect (Elsevier - via Crossref)
92
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
72
Springer Nature (via Crossref)
66
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
58
University of Bristol: Bristol Research
56
Northumbria University, Newcastle: Northumbria Research Link (NRL)
55
eCite UTAS (University of Tasmania)
53
Institut national des sciences de l'Univers: HAL-INSU
47
Australian National University: ANU Digital Collections
41
Université de Nantes: HAL-UNIV-NANTES
41
Utrecht University Repository
36
Imperial College London: Spiral
31
White Rose Research Online (Universities of Leeds, Sheffield & York)
31
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
28
Caltech Authors (California Institute of Technology)
28
Durham University: Durham Research Online
28
University College London: UCL Discovery
26
Vernadsky National Library of Ukraine: DSpace
26
University of Southampton: e-Prints Soton
23
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
21
University of Tasmania: UTas ePrints
21
Digital Commons University of South Florida (USF)
20
University of South Florida St. Petersburg: Digital USFSP
20
Université Grenoble Alpes: HAL
20
Wiley Online Library (via Crossref)
20
AAAS Resource Center (American Association for the Advancement of Science)
19
Columbia University: Academic Commons
19
Apollo - University of Cambridge Repository
18
Delft University of Technology: Institutional Repository
17
Lancaster University: Lancaster Eprints
17
Newcastle University Library ePrints Service
17
Arctic Portal Library
16
Informa (via Crossref)
16
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
16
University of Copenhagen: Research
16
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
15
Geological Quarterly
15
ScienceDirect (Elsevier)
15
Wiley Online Library
15
Universidad de Chile: Repositorio académico
13
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
12
Archives ouvertes de Paris-Saclay
11
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