Content Provider
Natural Environment Research Council: NERC Open Research Archive
1,187
Directory of Open Access Journals: DOAJ Articles
822
DataCite Metadata Store (German National Library of Science and Technology)
391
ScienceDirect (Elsevier - via Crossref)
390
Cambridge University Press
360
Springer Nature (via Crossref)
297
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
271
Unknown
211
Digital.CSIC (Spanish National Research Council)
202
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
199
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
159
Niedersächsisches Online-Archiv NOA
142
ScienceDirect (Elsevier)
128
University of Southampton: e-Prints Soton
102
Wiley Online Library (via Crossref)
98
Université de Nantes: HAL-UNIV-NANTES
97
eCite UTAS (University of Tasmania)
89
Vernadsky National Library of Ukraine: DSpace
88
Wiley Online Library
88
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
87
University of California: eScholarship
80
Utrecht University Repository
66
Frontiers (Publisher)
61
Institut national des sciences de l'Univers: HAL-INSU
57
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
54
Australian National University: ANU Digital Collections
53
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
52
University of East Anglia: UEA Digital Repository
52
University of Tasmania: UTas ePrints
51
Ghent University Academic Bibliography
46
Universidad de Chile: Repositorio académico
46
University of Groningen research database
45
White Rose Research Online (Universities of Leeds, Sheffield & York)
44
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
44
Zenodo
44
Durham University: Durham Research Online
43
Northumbria University, Newcastle: Northumbria Research Link (NRL)
42
University of Glasgow: Enlighten - Publications
42
Apollo - University of Cambridge Repository
35
University College London: UCL Discovery
35
Informa (via Crossref)
32
Magnolia press
32
The Royal Society (via Crossref)
31
NIOZ Repository (Royal Netherlands Institute for Sea Research)
29
University of Bristol: Bristol Research
29
De Gruyter (via Crossref)
28
Digital Commons University of South Florida (USF)
28
Old Dominion University: ODU Digital Commons
28
University of South Florida St. Petersburg: Digital USFSP
28
Arctic Portal Library
27
more ...