Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
13
Institute for Marine Research: Brage IMR
11
University of Tromsø: Munin Open Research Archive
11
Dryad Digital Repository (Duke University)
4
PubMed Central (PMC)
4
Åbo Akademi University Research Portal
4
Zenodo
3
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
2
Tomsk State University Research Library
2
UPF Digital Repository (Universitat Pompeu Fabra, Barcelona)
2
Unknown
2
Wiley Online Library
2
Frontiers (Publisher)
1
NTNU Open Archive (Norwegian University of Science and Technology)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of Southern Denmark Research Portal
1