Content Provider
University of St Andrews: Research Portal
51
Unknown
37
PubMed Central (PMC)
32
Springer Nature (via Crossref)
32
eCite UTAS (University of Tasmania)
32
Wiley Online Library
30
DataCite Metadata Store (German National Library of Science and Technology)
23
Directory of Open Access Journals: DOAJ Articles
21
University of Tasmania: UTas ePrints
20
HighWire Press (Stanford University)
19
PANGAEA - Data Publisher for Earth & Environmental Science
18
Montana State University (MSU): ScholarWorks
16
ScienceDirect (Elsevier - via Crossref)
16
University of Canterbury, Christchurch: UC Research Repository
15
Wiley Online Library (via Crossref)
12
Aarhus University: Research
11
Cambridge University Press
11
Canadian Science Publishing (via Crossref)
11
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
10
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
10
Université de Nantes: HAL-UNIV-NANTES
10
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
9
National Institute of Polar Research Repository, Japan
9
University of Pretoria: UPSpace
7
ScienceDirect (Elsevier)
6
The University of Queensland: UQ eSpace
6
University of California: eScholarship
6
Macquarie University Research Portal
5
Natural Environment Research Council: NERC Open Research Archive
5
The University of Adelaide: Digital Library
5
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
5
University of Alaska: ScholarWorks@UA
5
University of St Andrews: Digital Research Repository
5
BioMed Central
4
Defense Technical Information Center: DTIC Technical Reports database
4
Oxford University Press (via Crossref)
4
Texas A&M University Digital Repository
4
Digital Collections of Colorado (Colorado State University)
3
Informa (via Crossref)
3
Mountain Scholar (Digital Collections of Colorado and Wyoming)
3
The University of Waikato: Research Commons
3
AAAS Resource Center (American Association for the Advancement of Science)
2
BioOne Online Journals
2
Canadian Science Publishing
2
DSpace-CRIS @ ANLIS (Administración Nacional de Laboratorios e Institutos de Salud)
2
Griffith University: Griffith Research Online
2
HAL - Université de La Rochelle
2
Lincoln University (New Zealand): Lincoln U Research Archive
2
MDPI Open Access Publishing
2
Murdoch University: Murdoch Research Repository
2
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