Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
7,049
Unknown
3,463
Directory of Open Access Journals: DOAJ Articles
3,071
Natural Environment Research Council: NERC Open Research Archive
2,693
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,301
Springer Nature (via Crossref)
1,271
Cambridge University Press
1,135
Research Data Australia (Australian National Data Service - ANDS)
1,133
National Institute of Polar Research Repository, Japan
1,022
Copernicus Publications: E-Journals
1,015
PubMed Central (PMC)
1,005
eCite UTAS (University of Tasmania)
946
Université de Nantes: HAL-UNIV-NANTES
892
LeibnizOpen (The Leibniz Association)
818
ScienceDirect (Elsevier - via Crossref)
710
Niedersächsisches Online-Archiv NOA
656
NASA Technical Reports Server (NTRS)
646
IEDA: Marine-Geo Digital Library (via DataONE)
645
Wiley Online Library
629
University of Tasmania: UTas ePrints
621
PANGAEA - Data Publisher for Earth & Environmental Science
580
Digital.CSIC (Spanish National Research Council)
560
MDPI Open Access Publishing
450
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
443
Institut national des sciences de l'Univers: HAL-INSU
438
University of Canterbury, Christchurch: UC Research Repository
390
University of Southampton: e-Prints Soton
370
University of California: eScholarship
367
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
353
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
296
ScienceDirect (Elsevier)
296
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
295
HighWire Press (Stanford University)
274
Australian National University: ANU Digital Collections
273
ArXiv.org (Cornell University Library)
266
Defense Technical Information Center: DTIC Technical Reports database
266
Frontiers: Figshare
261
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
252
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
241
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
239
Utrecht University Repository
235
Informa (via Crossref)
219
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
213
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
204
Université Grenoble Alpes: HAL
191
University of East Anglia: UEA Digital Repository
179
Arctic Data Center (via DataONE)
157
Vernadsky National Library of Ukraine: DSpace
155
Max Planck Society: MPG.PuRe
149
The University of Queensland: UQ eSpace
149
more ...