Content Provider
Central Washington University: ScholarWorks
10
DataCite Metadata Store (German National Library of Science and Technology)
10
Australian National University: ANU Digital Collections
6
Unknown
6
Natural Environment Research Council: NERC Open Research Archive
4
Università degli Studi di Siena: USiena air
4
Directory of Open Access Journals: DOAJ Articles
3
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
3
Ohio State University (OSU): Knowledge Bank
3
The University of Maine: DigitalCommons@UMaine
3
Columbia University: Academic Commons
2
Copernicus Publications: E-Journals
2
Durham University: Durham Research Online
2
Imperial College London: Spiral
2
Indiana University - Purdue University Indianapolis: IUPUI Scholar Works
2
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
2
The University of Kansas: KU ScholarWorks
2
The University of Waikato: Research Commons
2
University of Minnesota Digital Conservancy
2
White Rose Research Online (Universities of Leeds, Sheffield & York)
2
Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia)
1
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS)
1
Arizona State University: ASU Digital Repository
1
Caltech Authors (California Institute of Technology)
1
Cambridge University Press
1
Canadian Science Publishing (via Crossref)
1
Geological Society of London: Figshare
1
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
1
HighWire Press (Stanford University)
1
Høgskulen på Vestlandet: HVL Open
1
IEDA: US Antarctic Program Data Center (via DataONE)
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
JPL Technical Report Server
1
NASA Technical Reports Server (NTRS)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
1
Springer Nature
1
Swedish Museum of Natural History: Publications (DiVA)
1
University of Alabama Institutional Repository
1
University of California: eScholarship
1
University of Hong Kong: HKU Scholars Hub
1
University of Nebraska-Lincoln: DigitalCommons@UNL
1
University of St Andrews: Research Portal
1
University of Tasmania: UTas ePrints
1
University of Victoria (Canada): UVicDSpace
1
University of Waterloo, Canada: Institutional Repository
1
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
1
Università degli Studi di Genova: CINECA IRIS
1
Washington University St. Louis: Open Scholarship
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1