Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
9,084
Unknown
3,469
Directory of Open Access Journals: DOAJ Articles
3,097
Natural Environment Research Council: NERC Open Research Archive
2,701
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1,728
Cambridge University Press
1,657
Research Data Australia (Australian National Data Service - ANDS)
1,551
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,301
Springer Nature (via Crossref)
1,271
PANGAEA - Data Publisher for Earth & Environmental Science
1,204
Zenodo
1,118
Copernicus Publications: E-Journals
1,055
National Institute of Polar Research Repository, Japan
1,022
PubMed Central (PMC)
993
eCite UTAS (University of Tasmania)
946
Université de Nantes: HAL-UNIV-NANTES
896
Institut national des sciences de l'Univers: HAL-INSU
894
ScienceDirect (Elsevier - via Crossref)
858
LeibnizOpen (The Leibniz Association)
818
Niedersächsisches Online-Archiv NOA
718
Wiley Online Library (via Crossref)
717
NASA Technical Reports Server (NTRS)
646
IEDA: Marine-Geo Digital Library (via DataONE)
645
University of Tasmania: UTas ePrints
621
Digital.CSIC (Spanish National Research Council)
548
Wiley Online Library
472
MDPI Open Access Publishing
450
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
436
University of California: eScholarship
429
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
404
HAL Sorbonne Université
395
University of Canterbury, Christchurch: UC Research Repository
390
Frontiers: Figshare
379
University of Southampton: e-Prints Soton
369
Informa (via Crossref)
350
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
342
ScienceDirect (Elsevier)
330
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
308
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
295
HighWire Press (Stanford University)
274
Australian National University: ANU Digital Collections
273
ArXiv.org (Cornell University Library)
266
Defense Technical Information Center: DTIC Technical Reports database
266
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
264
Université Grenoble Alpes: HAL
264
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
248
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
240
Utrecht University Repository
234
University of Liège: ORBi (Open Repository and Bibliography)
227
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
217
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