Content Provider
Directory of Open Access Journals: DOAJ Articles
3,071
Natural Environment Research Council: NERC Open Research Archive
2,414
Unknown
1,209
Springer Nature (via Crossref)
1,151
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,073
Cambridge University Press
1,058
DataCite Metadata Store (German National Library of Science and Technology)
829
Université de Nantes: HAL-UNIV-NANTES
727
ScienceDirect (Elsevier - via Crossref)
692
eCite UTAS (University of Tasmania)
666
Niedersächsisches Online-Archiv NOA
656
LeibnizOpen (The Leibniz Association)
621
Wiley Online Library
516
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
414
University of Tasmania: UTas ePrints
406
Digital.CSIC (Spanish National Research Council)
377
Institut national des sciences de l'Univers: HAL-INSU
363
University of Southampton: e-Prints Soton
316
University of California: eScholarship
309
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
291
ScienceDirect (Elsevier)
279
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
275
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
227
Australian National University: ANU Digital Collections
210
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
201
Informa (via Crossref)
185
Utrecht University Repository
181
University of East Anglia: UEA Digital Repository
167
Vernadsky National Library of Ukraine: DSpace
155
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
138
Magnolia press
136
University of St Andrews: Research Portal
135
Max Planck Society: MPG.PuRe
133
JSTOR (via Crossref)
131
The University of Queensland: UQ eSpace
130
Université Grenoble Alpes: HAL
123
University College London: UCL Discovery
118
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
115
IRIS Università degli Studi di Napoli Federico II
112
RePEc (Research Papers in Economics)
111
White Rose Research Online (Universities of Leeds, Sheffield & York)
107
Cambridge University Press (via Crossref)
106
Northumbria University, Newcastle: Northumbria Research Link (NRL)
103
The Royal Society
101
Università degli Studi di Genova: CINECA IRIS
100
Arctic Portal Library
96
Caltech Authors (California Institute of Technology)
96
Wiley Online Library (via Crossref)
96
DIAL@USL-B (Université Saint-Louis, Bruxelles)
95
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
95
more ...