Content Provider
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
12
DataCite Metadata Store (German National Library of Science and Technology)
7
Natural Environment Research Council: NERC Open Research Archive
5
Cambridge University Press
3
Columbia University: Academic Commons
3
Australian National University: ANU Digital Collections
2
Informa (via Crossref)
2
The University of Waikato: Research Commons
2
Unknown
2
BioOne Online Journals
1
Caltech Authors (California Institute of Technology)
1
HighWire Press (Stanford University)
1
Imperial College London: Spiral
1
Monash University: Figshare
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Swedish Museum of Natural History: Publications (DiVA)
1
University College London: UCL Discovery
1
University of Minnesota Digital Conservancy
1
University of Tasmania: UTas ePrints
1
University of Waterloo, Canada: Institutional Repository
1