Content Provider
Arca (BC's Digital Treasures)
4
Australian National University: ANU Digital Collections
8
Caltech Authors (California Institute of Technology)
7
Cambridge University Press
3
Canterbury Christ Church University: CReaTE (Canterbury Research and Theses Environment)
1
Castledown (via Crossref)
1
DataCite Metadata Store (German National Library of Science and Technology)
332
De Gruyter (via Crossref)
31
Digital Commons University of South Florida (USF)
13
Digital.CSIC (Spanish National Research Council)
1
Durham University: Durham Research Online
2
FAU Digital Collections (Florida Atlantic University Digital Library)
4
Geological Society of London: Figshare
16
Georg-August-Universität Göttingen: GoeScholar
1
Griffith University: Griffith Research Online
2
IOP Publishing
20
IOP Publishing (via Crossref)
13
Imperial College London: Spiral
32
Indigo - University of Illinois at Chicago
1
Informa
73
Informa (via Crossref)
111
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
8
Loughborough University: Figshare
2
Old Dominion University: ODU Digital Commons
19
OpenMETU (Middle East Technical University)
4
Oxford University Press
1
Queensland University of Technology: QUT ePrints
18
Rowan University: Rowan Digital Works
1
ScienceDirect (Elsevier - via Crossref)
22
ScienceDirect (Elsevier)
13
Sciendo (de Gruyter - via CrossRef)
15
The Cupola - Scholarship at Gettysburg College
4
The University of Queensland: UQ eSpace
2
The University of Western Ontario: Scholarship@Western
1
UDORA - The University of Derby Online Research Archive
3
University College London: UCL Discovery
9
University of California: eScholarship
205
University of Hull: Repository@Hull
6
University of Miami: Scholarly Repository
3
University of Mysore: ePrints@UoM
2
University of Nevada, Las Vegas: Digital Scholarship@UNLV
1
University of Nottingham: Repository@Nottingham
7
University of South Florida St. Petersburg: Digital USFSP
13
University of Strathclyde Glasgow: Strathprints
2
University of Sussex: Figshare
1
University of Technology Sydney: OPUS - Open Publications of UTS Scholars
3
Unknown
1
Wiley Online Library
3