Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
2,548
DataCite Metadata Store (German National Library of Science and Technology)
303
Directory of Open Access Journals: DOAJ Articles
288
Unknown
273
Springer Nature (via Crossref)
191
Natural Environment Research Council: NERC Open Research Archive
155
Copernicus Publications: E-Journals
151
ScienceDirect (Elsevier - via Crossref)
136
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
115
Niedersächsisches Online-Archiv NOA
108
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
106
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
99
Cambridge University Press
91
ScienceDirect (Elsevier)
81
Digital.CSIC (Spanish National Research Council)
78
eCite UTAS (University of Tasmania)
78
LeibnizOpen (The Leibniz Association)
60
Université de Nantes: HAL-UNIV-NANTES
58
Magnolia press
55
University of Southampton: e-Prints Soton
52
PubMed Central (PMC)
50
Institut national des sciences de l'Univers: HAL-INSU
40
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
39
Wiley Online Library
38
University of Groningen research database
35
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
34
University of St Andrews: Research Portal
34
Ghent University Academic Bibliography
33
National Institute of Polar Research Repository, Japan
31
University of Bergen: Bergen Open Research Archive (BORA-UiB)
31
University of East Anglia: UEA Digital Repository
30
University of Tasmania: UTas ePrints
29
DIAL@USL-B (Université Saint-Louis, Bruxelles)
27
MDPI Open Access Publishing
27
Defense Technical Information Center: DTIC Technical Reports database
24
Max Planck Society: MPG.PuRe
23
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
22
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
20
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
20
University of Copenhagen: Research
19
Wageningen UR (University & Research Centre): Digital Library
19
Apollo - University of Cambridge Repository
18
HighWire Press (Stanford University)
16
KITopen (Karlsruhe Institute of Technologie)
16
University of California: eScholarship
16
Aarhus University: Research
15
Informa (via Crossref)
15
NIOZ Repository (Royal Netherlands Institute for Sea Research)
15
Northumbria University, Newcastle: Northumbria Research Link (NRL)
15
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
15
more ...