Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
3,962
DataCite Metadata Store (German National Library of Science and Technology)
1,089
Unknown
392
Directory of Open Access Journals: DOAJ Articles
379
Springer Nature (via Crossref)
266
Natural Environment Research Council: NERC Open Research Archive
202
Copernicus Publications: E-Journals
197
ScienceDirect (Elsevier - via Crossref)
191
Cambridge University Press
170
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
158
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
156
eCite UTAS (University of Tasmania)
140
Niedersächsisches Online-Archiv NOA
139
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
116
Wiley Online Library (via Crossref)
111
ScienceDirect (Elsevier)
106
PubMed Central (PMC)
97
Université de Nantes: HAL-UNIV-NANTES
92
Digital.CSIC (Spanish National Research Council)
82
University of Southampton: e-Prints Soton
65
Magnolia press
62
University of Groningen research database
61
LeibnizOpen (The Leibniz Association)
60
University of St Andrews: Research Portal
60
National Institute of Polar Research Repository, Japan
59
University of Tasmania: UTas ePrints
57
Institut national des sciences de l'Univers: HAL-INSU
56
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
52
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
47
HighWire Press (Stanford University)
42
Wiley Online Library
42
University of East Anglia: UEA Digital Repository
40
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
38
Max Planck Society: MPG.PuRe
36
Ghent University Academic Bibliography
35
Defense Technical Information Center: DTIC Technical Reports database
34
MDPI Open Access Publishing
31
University of Bergen: Bergen Open Research Archive (BORA-UiB)
31
Informa (via Crossref)
29
Aarhus University: Research
25
University of California: eScholarship
25
Texas A&M University Digital Repository
24
University of Canterbury, Christchurch: UC Research Repository
24
University of Copenhagen: Research
24
Canadian Science Publishing (via Crossref)
23
NIOZ Repository (Royal Netherlands Institute for Sea Research)
23
The University of Queensland: UQ eSpace
23
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
22
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
22
University of the Highlands and Islands: Research Database of UHI
22
more ...