Content Provider
Directory of Open Access Journals: DOAJ Articles
869
DataCite Metadata Store (German National Library of Science and Technology)
362
Unknown
290
LeibnizOpen (The Leibniz Association)
233
Natural Environment Research Council: NERC Open Research Archive
225
Niedersächsisches Online-Archiv NOA
206
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
175
Informa (via Crossref)
169
Cambridge University Press
160
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
138
Université de Nantes: HAL-UNIV-NANTES
102
Springer Nature (via Crossref)
88
University of California: eScholarship
83
Institut national des sciences de l'Univers: HAL-INSU
82
eCite UTAS (University of Tasmania)
73
ScienceDirect (Elsevier - via Crossref)
72
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
68
Wiley Online Library (via Crossref)
68
University of Calgary Journal Hosting
67
Digital.CSIC (Spanish National Research Council)
51
Max Planck Society: MPG.PuRe
50
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
47
Informa
46
Wiley Online Library
46
University of Tasmania: UTas ePrints
43
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
39
Australian National University: ANU Digital Collections
36
University of Copenhagen: Research
34
Aarhus University: Research
33
Zenodo
32
Frontiers (Publisher)
29
Arctic Portal Library
28
University of Southampton: e-Prints Soton
28
RePEc (Research Papers in Economics)
26
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
25
Ice and Snow (E-Journal)
25
Polar Research (E-Journal)
25
Lund University Publications (LUP)
23
SAGE Publications (via Crossref)
23
University of East Anglia: UEA Digital Repository
23
University of Tromsø: Munin Open Research Archive
23
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
23
CentAUR: Central Archive at the University of Reading
22
HAL Sorbonne Université
22
University College London: UCL Discovery
22
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
21
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
20
IOP Publishing (via Crossref)
20
The Royal Society (via Crossref)
20
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
20
more ...