Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
17
PANGAEA - Data Publisher for Earth & Environmental Science
16
Unknown
14
Directory of Open Access Journals: DOAJ Articles
10
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
9
Copernicus Publications: E-Journals
8
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
6
University of Alberta: Era - Education and Research Archive
5
Aarhus University: Research
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Niedersächsisches Online-Archiv NOA
4
Vrije Universiteit Amsterdam (VU): Research Portal
4
MACAU: Open Access Repository of Kiel University
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
Natural Environment Research Council: NERC Open Research Archive
3
PubMed Central (PMC)
3
Springer Nature (via Crossref)
3
University of Southampton: e-Prints Soton
3
University of St Andrews: Research Portal
3
Université de Nantes: HAL-UNIV-NANTES
3
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
3
Florida State University Digital Library (FSUDL)
2
Florida State University: DigiNole Commons
2
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
2
Max Planck Society: MPG.PuRe
2
NIOZ Repository (Royal Netherlands Institute for Sea Research)
2
Universidade do Algarve: Sapienta
2
University of Bergen: Bergen Open Research Archive (BORA-UiB)
2
University of Bristol: Bristol Research
2
University of Cambridge, Department of Earth Sciences: ESC Publications
2
White Rose Research Online (Universities of Leeds, Sheffield & York)
2
Apollo - University of Cambridge Repository
1
Cambridge University Press
1
CentAUR: Central Archive at the University of Reading
1
DIAL@UCLouvain (Université catholique de Louvain)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Edinburgh Research Archive (ERA - University of Edinburgh)
1
Freie Universität Berlin: Refubium (FU Berlin)
1
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
1
Institut national des sciences de l'Univers: HAL-INSU
1
MDPI Open Access Publishing
1
NORCE vitenarkiv (Norwegian Research Centre)
1
OSKAR Bordeaux (Open Science Knowledge ARchive)
1
Publication Database PIK (Potsdam Institute for Climate Impact Research)
1
ScholarsArchive@OSU (Oregon State University)
1
UBIR Repository (University at Buffalo Institutional Repository)
1
University College London: UCL Discovery
1
University of California: eScholarship
1
University of East Anglia: UEA Digital Repository
1
University of Exeter: Open Research Exeter (ORE)
1
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