Content Provider
Directory of Open Access Journals: DOAJ Articles
2,794
Natural Environment Research Council: NERC Open Research Archive
1,639
Unknown
1,076
Cambridge University Press
996
DataCite Metadata Store (German National Library of Science and Technology)
827
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
791
eCite UTAS (University of Tasmania)
690
Université de Nantes: HAL-UNIV-NANTES
584
LeibnizOpen (The Leibniz Association)
562
Niedersächsisches Online-Archiv NOA
559
University of Tasmania: UTas ePrints
446
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
420
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
398
University of California: eScholarship
363
Digital.CSIC (Spanish National Research Council)
330
Wiley Online Library (via Crossref)
287
Springer Nature (via Crossref)
234
Australian National University: ANU Digital Collections
209
Institut national des sciences de l'Univers: HAL-INSU
208
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
207
Wiley Online Library
179
Utrecht University Repository
161
Université Grenoble Alpes: HAL
158
University of Southampton: e-Prints Soton
156
Arctic Portal Library
142
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
141
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
130
Magnolia press
122
Università degli Studi di Siena: USiena air
116
ScienceDirect (Elsevier - via Crossref)
111
Zenodo
109
Frontiers (Publisher)
103
The University of Queensland: UQ eSpace
103
Northumbria University, Newcastle: Northumbria Research Link (NRL)
102
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
100
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
97
Vernadsky National Library of Ukraine: DSpace
97
Università degli Studi di Genova: CINECA IRIS
95
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
93
Durham University: Durham Research Online
87
RePEc (Research Papers in Economics)
85
The University of Waikato: Research Commons
85
University College London: UCL Discovery
83
Cambridge University Press (via Crossref)
81
Masaryk University Journals
79
The University of Adelaide: Digital Library
79
Apollo - University of Cambridge Repository
78
BORIS (Bern Open Repository and Information System, University of Bern)
78
Ghent University Academic Bibliography
78
White Rose Research Online (Universities of Leeds, Sheffield & York)
78
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