Content Provider
Natural Environment Research Council: NERC Open Research Archive
35
University of Groningen research database
11
University of Southampton: e-Prints Soton
10
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
6
Cardiff University: ORCA (Online Research @ Cardiff)
4
University of East Anglia: UEA Digital Repository
4
DataCite Metadata Store (German National Library of Science and Technology)
3
The Open University: Open Research Online (ORO)
3
Wiley Online Library
3
Institute for Marine Research: Brage IMR
2
PubMed Central (PMC)
2
University of the Highlands and Islands: Research Database of UHI
2
AAAS Resource Center (American Association for the Advancement of Science)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Columbia University: Academic Commons
1
Copernicus Publications: E-Journals
1
HELDA – University of Helsinki Open Repository
1
Niedersächsisches Online-Archiv NOA
1
Northumbria University, Newcastle: Northumbria Research Link (NRL)
1
The Royal Society
1
University of Bristol: Bristol Research
1
University of Glasgow: Enlighten - Publications
1
University of Nebraska-Lincoln: DigitalCommons@UNL
1
University of Nottingham: Repository@Nottingham
1
Vrije Universiteit Amsterdam (VU): Research Portal
1
W&M ScholarWorks
1
White Rose Research Online (Universities of Leeds, Sheffield & York)
1