Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
238
PANGAEA - Data Publisher for Earth & Environmental Science
137
NOAA NCEI Environmental Data Archive (via DataONE)
114
Defense Technical Information Center: DTIC Technical Reports database
5
Smithsonian Institution: Figshare
5
Zenodo
5
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Arctic and Antarctic Research (E-Journal)
3
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
3
Unknown
3
Directory of Open Access Journals: DOAJ Articles
2
Dryad Digital Repository (Duke University)
2
University of Tromsø: Munin Open Research Archive
2
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Digital Commons University of South Florida (USF)
1
GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
1
Geological Society of London: Figshare
1
HighWire Press (Stanford University)
1
OpenAgrar (OA)
1
PubMed Central (PMC)
1
Technical University of Denmark: DTU Orbit
1
University of South Florida St. Petersburg: Digital USFSP
1
University of the Highlands and Islands: Research Database of UHI
1
Université de Nantes: HAL-UNIV-NANTES
1
Wageningen UR (University & Research Centre): Digital Library
1