Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,668
Directory of Open Access Journals: DOAJ Articles
14
Zenodo
10
Copernicus Publications: E-Journals
7
Unknown
6
PANGAEA - Data Publisher for Earth & Environmental Science
5
Niedersächsisches Online-Archiv NOA
4
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
4
Wiley Online Library (via Crossref)
4
Aarhus University: Research
3
Ghent University Academic Bibliography
3
Institute for Marine Research: Brage IMR
3
PubMed Central (PMC)
3
University of Tromsø: Munin Open Research Archive
3
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
2
Apollo - University of Cambridge Repository
2
Cambridge University Press
2
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
2
PeerJ Publishing (via CrossRef)
2
University of Copenhagen: Research
2
Aarhus University: OJS at The State and University Library
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Arctic Data Center (via DataONE)
1
CyberLeninka (Scientific Electronic Library)
1
DIGIBUG: Repositorio Institucional de la Universidad de Granada
1
Digital.CSIC (Spanish National Research Council)
1
DigitalCommons@CalPoly (California Polytechnic State University, San Luis Obispo)
1
Dryad Digital Repository (Duke University)
1
Griffith University: Griffith Research Online
1
HighWire Press (Stanford University)
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
IRIS Università degli Studi di Perugia
1
MDPI Open Access Publishing
1
Magnolia press
1
Natural Environment Research Council: NERC Open Research Archive
1
Norwegian Institute for Nature Research: Brage NINA
1
ORA - Oxford University Research Archive
1
Open Access Victoria University of Wellington / Te Herenga Waka
1
PUMAlab (ISTI CNR - National Research Council)
1
Polar Research (E-Journal)
1
RERO DOC Digital Library
1
Springer Nature (via Crossref)
1
Technical University of Denmark: DTU Orbit
1
The University of Queensland: UQ eSpace
1
Tidsskrift.dk (The Royal Library, Denmark)
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
University of Alaska: ScholarWorks@UA
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of East Anglia: UEA Digital Repository
1
more ...