Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
322
DataCite Metadata Store (German National Library of Science and Technology)
298
Unknown
286
Directory of Open Access Journals: DOAJ Articles
233
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
181
Copernicus Publications: E-Journals
152
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
117
Université de Nantes: HAL-UNIV-NANTES
114
eCite UTAS (University of Tasmania)
100
Niedersächsisches Online-Archiv NOA
96
Natural Environment Research Council: NERC Open Research Archive
89
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
89
University of Southampton: e-Prints Soton
77
PubMed Central (PMC)
75
Institut national des sciences de l'Univers: HAL-INSU
74
HAL Sorbonne Université
63
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
52
ScienceDirect (Elsevier - via Crossref)
48
University of Tasmania: UTas ePrints
47
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
45
Max Planck Society: MPG.PuRe
45
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
44
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
43
University of California: eScholarship
42
University of Groningen research database
40
LeibnizOpen (The Leibniz Association)
39
École Polytechnique, Université Paris-Saclay: HAL
39
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
38
Muséum National d'Histoire Naturelle (MNHM): HAL
36
WikiBooks - Open-content textbooks
36
Université de Paris: Portail HAL
33
Archives ouvertes de Paris-Saclay
32
Università degli Studi di Napoli "Parthenope": CINECA IRIS
32
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
31
The University of Queensland: UQ eSpace
31
Springer Nature (via Crossref)
30
Digital.CSIC (Spanish National Research Council)
29
Wiley Online Library (via Crossref)
29
Wiley Online Library
28
BORIS (Bern Open Repository and Information System, University of Bern)
26
Apollo - University of Cambridge Repository
22
Université de Bretagne Occidentale: HAL
22
Magnolia press
21
Utrecht University Repository
21
Météo-France: HAL
20
Caltech Authors (California Institute of Technology)
19
Cambridge University Press
19
ScholarsArchive@OSU (Oregon State University)
19
University of Bristol: Bristol Research
19
Defense Technical Information Center: DTIC Technical Reports database
18
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