Content Provider
University of St Andrews: Research Portal
35
Research Data Australia (Australian National Data Service - ANDS)
26
Wiley Online Library
20
DataCite Metadata Store (German National Library of Science and Technology)
13
Cambridge University Press
12
Territory Stories (Northern Territory Government, Australia)
11
Oxford University Press (via Crossref)
9
ScienceDirect (Elsevier)
8
Unknown
7
HighWire Press (Stanford University)
6
The Royal Society
6
Wageningen UR (University & Research Centre): Digital Library
6
Delaware Heritage Collection
5
Directory of Open Access Journals: DOAJ Articles
5
Lenus - Irish Health Publications Archive (HSE - Health Service Executive)
5
Maine State Documents (Maine State Library)
5
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
5
SRUC (Scotland's Rural College): Research Portal
5
University of Tasmania: UTas ePrints
5
ScienceDirect (Elsevier - via Crossref)
4
The Royal Society: Figshare
4
Wiley Online Library (via Crossref)
4
Aarhus University: Research
3
PubMed Central (PMC)
3
The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive)
3
Zenodo
3
Aarhus University: OJS at The State and University Library
2
Australian National University: ANU Digital Collections
2
Brill
2
Digital Repository of Scientific Institutes (RCIN)
2
Ghent University Academic Bibliography
2
Hathi Trust Digital Library
2
Informa (via Crossref)
2
JSTOR (via Crossref)
2
NASA Technical Reports Server (NTRS)
2
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands)
2
Naturalis Institutional Repository
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
OpenAgrar (OA)
2
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
2
Springer Nature (via Crossref)
2
Texas A&M University Digital Repository
2
The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository
2
Tidsskrift.dk (The Royal Library, Denmark)
2
University of Groningen research database
2
Utrecht University Repository
2
WBI Studies Repository (WellBeing International)
2
Wellcome Trust, London: Wellcome Images
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Brepols Publishers
1
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