Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
20
PANGAEA - Data Publisher for Earth & Environmental Science
12
Utrecht University Repository
5
Copernicus Publications: E-Journals
3
Zenodo
3
Niedersächsisches Online-Archiv NOA
2
Northumbria University, Newcastle: Northumbria Research Link (NRL)
2
ARPI - Archivio della Ricerca dell'Università di Pisa
1
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
1
Indiana University - Purdue University Indianapolis: IUPUI Scholar Works
1
Natural Environment Research Council: NERC Open Research Archive
1
PubMed Central (PMC)
1
University of Southampton: e-Prints Soton
1
University of Tromsø: Munin Open Research Archive
1
Unknown
1