Content Provider
Natural Environment Research Council: NERC Open Research Archive
141
Directory of Open Access Journals: DOAJ Articles
135
LeibnizOpen (The Leibniz Association)
67
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
56
Unknown
50
Niedersächsisches Online-Archiv NOA
42
DataCite Metadata Store (German National Library of Science and Technology)
32
University of California: eScholarship
31
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
21
Northumbria University, Newcastle: Northumbria Research Link (NRL)
21
Institut national des sciences de l'Univers: HAL-INSU
20
DataCite
18
University of Southampton: e-Prints Soton
17
University of Bristol: Bristol Research
16
Cambridge University Press
15
Digital Commons University of South Florida (USF)
15
Utrecht University Repository
15
eCite UTAS (University of Tasmania)
15
University of East Anglia: UEA Digital Repository
14
University of South Florida St. Petersburg: Digital USFSP
13
Université de Nantes: HAL-UNIV-NANTES
13
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
12
University College London: UCL Discovery
12
Caltech Authors (California Institute of Technology)
11
Columbia University: Academic Commons
11
University of St Andrews: Research Portal
11
Wiley Online Library
11
Springer Nature (via Crossref)
10
Université Grenoble Alpes: HAL
10
DIAL@USL-B (Université Saint-Louis, Bruxelles)
9
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
9
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
9
Apollo - University of Cambridge Repository
8
DIAL@UCLouvain (Université catholique de Louvain)
8
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
8
Imperial College London: Spiral
8
University of Groningen research database
8
University of Tasmania: UTas ePrints
8
AAAS Resource Center (American Association for the Advancement of Science)
7
Durham University: Durham Research Online
7
Frontiers (Publisher)
7
The Open University: Open Research Online (ORO)
7
University of Glasgow: Enlighten - Publications
7
ETH Zürich Research Collection
6
HAL Sorbonne Université
6
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
6
Lancaster University: Lancaster Eprints
6
ScienceDirect (Elsevier - via Crossref)
6
University of California Press
6
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
6
more ...