Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
4
Directory of Open Access Journals: DOAJ Articles
4
Cambridge University Press
2
Natural Environment Research Council: NERC Open Research Archive
2
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
2
ScholarsArchive@OSU (Oregon State University)
2
University of Calgary Journal Hosting
2
Unknown
2
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Arctic Institute of North America (via Crossref)
1
Canadian Science Publishing
1
Frontiers (Publisher)
1
HELDA – University of Helsinki Open Repository
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
Max Planck Society: MPG.PuRe
1
Niedersächsisches Online-Archiv NOA
1
Northumbria University, Newcastle: Northumbria Research Link (NRL)
1
Publication Database PIK (Potsdam Institute for Climate Impact Research)
1
Springer Nature (via Crossref)
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of California Press
1
University of Copenhagen: Research
1
White Rose Research Online (Universities of Leeds, Sheffield & York)
1
Wiley Online Library
1
Zenodo
1
enKORE project
1