Content Provider
Unknown
2,746
DataCite Metadata Store (German National Library of Science and Technology)
2,718
Directory of Open Access Journals: DOAJ Articles
2,454
LeibnizOpen (The Leibniz Association)
1,687
Copernicus Publications: E-Journals
1,620
Cambridge University Press
1,032
Niedersächsisches Online-Archiv NOA
1,027
PANGAEA - Data Publisher for Earth & Environmental Science
961
ScienceDirect (Elsevier - via Crossref)
889
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
878
Institut national des sciences de l'Univers: HAL-INSU
724
Université de Nantes: HAL-UNIV-NANTES
611
Natural Environment Research Council: NERC Open Research Archive
570
Wiley Online Library
537
Utrecht University Repository
499
Springer Nature (via Crossref)
494
PubMed Central (PMC)
481
University of Bristol: Bristol Research
449
National Institute of Polar Research Repository, Japan
412
Aarhus University: Research
378
University of Copenhagen: Research
359
Wiley Online Library (via Crossref)
351
University of Liège: ORBi (Open Repository and Bibliography)
335
White Rose Research Online (Universities of Leeds, Sheffield & York)
333
Technical University of Denmark: DTU Orbit
308
eCite UTAS (University of Tasmania)
301
Université Grenoble Alpes: HAL
294
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
282
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
280
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
271
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
270
Zenodo
246
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
240
University of California: eScholarship
228
Apollo - University of Cambridge Repository
202
MDPI Open Access Publishing
192
Defense Technical Information Center: DTIC Technical Reports database
189
University of St Andrews: Research Portal
189
Archives ouvertes de Paris-Saclay
186
AAAS Resource Center (American Association for the Advancement of Science)
185
Université Savoie Mont Blanc: HAL
185
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
183
University of Tromsø: Munin Open Research Archive
182
Delft University of Technology: Institutional Repository
176
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
164
University of Southampton: e-Prints Soton
158
DIAL@USL-B (Université Saint-Louis, Bruxelles)
157
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
150
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
142
DIAL@UCLouvain (Université catholique de Louvain)
141
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