Content Provider
Natural Environment Research Council: NERC Open Research Archive
111
DataCite Metadata Store (German National Library of Science and Technology)
48
Directory of Open Access Journals: DOAJ Articles
39
Cambridge University Press
19
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
18
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
17
Wiley Online Library
15
Australian National University: ANU Digital Collections
10
Digital.CSIC (Spanish National Research Council)
10
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
9
Unknown
9
Vernadsky National Library of Ukraine: DSpace
8
eCite UTAS (University of Tasmania)
8
Institut national des sciences de l'Univers: HAL-INSU
7
ScienceDirect (Elsevier - via Crossref)
7
University of Southampton: e-Prints Soton
7
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
6
Universidad de Chile: Repositorio académico
6
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
5
University of California: eScholarship
5
Columbia University: Academic Commons
4
Ghent University Academic Bibliography
4
Magnolia press
4
Niedersächsisches Online-Archiv NOA
4
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
4
University of Groningen research database
4
University of Tasmania: UTas ePrints
4
Université de Nantes: HAL-UNIV-NANTES
4
ARPI - Archivio della Ricerca dell'Università di Pisa
3
Archivio della ricerca dell'Università di Parma (CINECA IRIS)
3
DIGIBUG: Repositorio Institucional de la Universidad de Granada
3
RI FURG (Repositório da Universidade Federal do Rio Grande)
3
RePEc (Research Papers in Economics)
3
Springer Nature (via Crossref)
3
The University of Manchester: Research Explorer
3
University College London: UCL Discovery
3
University of East Anglia: UEA Digital Repository
3
Arctic Portal Library
2
Arctic and Antarctic Research (E-Journal)
2
Caltech Authors (California Institute of Technology)
2
Digital Commons University of South Florida (USF)
2
Durham University: Durham Research Online
2
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
2
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
2
IOP Publishing
2
Max Planck Society: MPG.PuRe
2
NIOZ Repository (Royal Netherlands Institute for Sea Research)
2
Scientific Periodicals of Ukraine (Ukrainian Research and Academic Network)
2
Swedish Museum of Natural History: Publications (DiVA)
2
The Open University: Open Research Online (ORO)
2
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