Content Provider
Directory of Open Access Journals: DOAJ Articles
6,842
Natural Environment Research Council: NERC Open Research Archive
5,069
Springer Nature (via Crossref)
4,284
DataCite Metadata Store (German National Library of Science and Technology)
4,127
Cambridge University Press
3,175
Unknown
2,758
ScienceDirect (Elsevier - via Crossref)
2,735
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2,503
Université de Nantes: HAL-UNIV-NANTES
1,795
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1,757
eCite UTAS (University of Tasmania)
1,705
Niedersächsisches Online-Archiv NOA
1,335
LeibnizOpen (The Leibniz Association)
1,064
ScienceDirect (Elsevier)
1,021
University of Tasmania: UTas ePrints
965
Informa (via Crossref)
961
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
917
University of California: eScholarship
865
Institut national des sciences de l'Univers: HAL-INSU
802
Digital.CSIC (Spanish National Research Council)
797
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
680
University of Southampton: e-Prints Soton
654
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
619
Zenodo
572
Wiley Online Library (via Crossref)
561
JSTOR (via Crossref)
492
Australian National University: ANU Digital Collections
482
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
480
Université Grenoble Alpes: HAL
396
Vernadsky National Library of Ukraine: DSpace
383
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
363
The University of Queensland: UQ eSpace
335
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
332
Max Planck Society: MPG.PuRe
322
Oxford University Press (via Crossref)
322
Utrecht University Repository
315
Frontiers (Publisher)
310
Magnolia press
296
University of East Anglia: UEA Digital Repository
293
HAL Sorbonne Université
267
University of St Andrews: Research Portal
267
Arctic Portal Library
243
University College London: UCL Discovery
243
Northumbria University, Newcastle: Northumbria Research Link (NRL)
241
RePEc (Research Papers in Economics)
241
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
241
Biodiversity Heritage Library (BHL)
238
The Royal Society (via Crossref)
227
Cambridge University Press (via Crossref)
226
Università degli Studi di Genova: CINECA IRIS
225
more ...