Content Provider
Directory of Open Access Journals: DOAJ Articles
9
Natural Environment Research Council: NERC Open Research Archive
9
Unknown
9
DataCite Metadata Store (German National Library of Science and Technology)
6
PANGAEA - Data Publisher for Earth & Environmental Science
6
Copernicus Publications: E-Journals
4
Niedersächsisches Online-Archiv NOA
4
Wiley Online Library
3
Cardiff University: ORCA (Online Research @ Cardiff)
2
PubMed Central (PMC)
2
eCite UTAS (University of Tasmania)
2
Arctic Portal Library
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
MDPI Open Access Publishing
1
Northumbria University, Newcastle: Northumbria Research Link (NRL)
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Oxford University Press
1
Polar Research
1
The Royal Society
1
Universidad de Chile: Repositorio académico
1
Universidad de Las Palmas de Gran Canaria: Acceda
1
Universidade do Algarve: Sapienta
1
University of East Anglia: UEA Digital Repository
1
University of Pretoria: UPSpace
1
University of Southampton: e-Prints Soton
1
University of the Highlands and Islands: Research Database of UHI
1
Utrecht University Repository
1