Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
7
Unknown
5
PANGAEA - Data Publisher for Earth & Environmental Science
4
Apollo - University of Cambridge Repository
3
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
Natural Environment Research Council: NERC Open Research Archive
3
Directory of Open Access Journals: DOAJ Articles
2
PubMed Central (PMC)
2
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
2
eCite UTAS (University of Tasmania)
2
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
Magnolia press
1
Monash University Research Portal
1
National Institute of Polar Research Repository, Japan
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
1
RUC - Repositorio Universidade Coruña
1
ScholarWorks@UNIST (Ulsan National Institute of Science and Technology)
1
The University of Waikato: Research Commons
1
UNSW Sydney (The University of New South Wales): UNSWorks
1
Universidad de Chile: Repositorio académico
1
University of California: eScholarship
1
University of Southampton: e-Prints Soton
1