Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
13,253
NOAA NCEI Environmental Data Archive (via DataONE)
499
Unknown
322
Directory of Open Access Journals: DOAJ Articles
231
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
185
Research Data Australia (Australian National Data Service - ANDS)
180
IEDA: Marine-Geo Digital Library (via DataONE)
173
Natural Environment Research Council: NERC Open Research Archive
151
Copernicus Publications: E-Journals
146
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
119
Université de Nantes: HAL-UNIV-NANTES
116
University of Southampton: e-Prints Soton
104
eCite UTAS (University of Tasmania)
100
University of California: eScholarship
94
PANGAEA - Data Publisher for Earth & Environmental Science
91
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
90
Niedersächsisches Online-Archiv NOA
87
Institut national des sciences de l'Univers: HAL-INSU
77
PubMed Central (PMC)
75
University of Tasmania: UTas ePrints
59
Digital.CSIC (Spanish National Research Council)
49
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
49
Australian National University: ANU Digital Collections
48
ScienceDirect (Elsevier - via Crossref)
48
Max Planck Society: MPG.PuRe
46
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
43
WikiBooks - Open-content textbooks
43
LeibnizOpen (The Leibniz Association)
39
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
38
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
36
Università degli Studi di Napoli "Parthenope": CINECA IRIS
34
Springer Nature (via Crossref)
32
Wiley Online Library
32
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
31
The University of Queensland: UQ eSpace
31
Caltech Authors (California Institute of Technology)
29
University of East Anglia: UEA Digital Repository
29
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
25
University of South Florida St. Petersburg: Digital USFSP
24
BORIS (Bern Open Repository and Information System, University of Bern)
23
UNSW Sydney (The University of New South Wales): UNSWorks
23
University of Groningen research database
23
University of St Andrews: Research Portal
23
Utrecht University Repository
23
Apollo - University of Cambridge Repository
22
Digital Commons University of South Florida (USF)
21
Imperial College London: Spiral
21
Magnolia press
21
ORA - Oxford University Research Archive
21
Dryad Digital Repository (Duke University)
20
more ...