Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,002
LeibnizOpen (The Leibniz Association)
19
Unknown
3
Caltech Authors (California Institute of Technology)
2
NOAA NCEI Environmental Data Archive (via DataONE)
2
USGS Science Data Catalog (via DataONE)
2
Zenodo
2
Cambridge University Press
1
Defense Technical Information Center: DTIC Technical Reports database
1
Directory of Open Access Journals: DOAJ Articles
1
Edinburgh DataShare (University of Edinburgh)
1
IRUA - Institutional Repository van de Universiteit Antwerpen
1
Istanbul Bilgi University: Open Access Repository
1
NAOSITE: Nagasaki University Academic Output SITE
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
University of Calgary Journal Hosting
1
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
1