Content Provider
Skemman (Iceland)
122
DataCite Metadata Store (German National Library of Science and Technology)
85
Ohio University Library Digital Archives
53
National Institute of Polar Research Repository, Japan
46
Directory of Open Access Journals: DOAJ Articles
39
Unknown
37
Dryad Digital Repository (Duke University)
13
Springer Nature (via Crossref)
12
Hirsla - Landspítali University Hospital research archive
11
Opin vísindi (Iceland)
9
University of Iceland: Peer Reviewed Journals
8
The University of Waikato: Research Commons
7
Informa (via Crossref)
6
University of California: eScholarship
5
Cambridge University Press
4
Frontiers: Figshare
4
PubMed Central (PMC)
4
ScienceDirect (Elsevier - via Crossref)
4
University of Canterbury, Christchurch: UC Research Repository
4
DSpace@MIT (Massachusetts Institute of Technology)
3
MDPI Open Access Publishing
3
ORA - Oxford University Research Archive
3
Repositório Institucional da Universidade Federal de Sergipe (RIUFS)
3
ASM Journals (American Society for Microbiology)
2
Charles University CU Digital repository
2
Copernicus Publications: E-Journals
2
HighWire Press (Stanford University)
2
Northern Illinois University (NIU): Huskie Commons Repository
2
Ohio State University (OSU): Knowledge Bank
2
ScienceDirect (Elsevier)
2
University of Memphis Digital Commons
2
ASM Journals (American Society for Microbiology - via Crossref)
1
AU Digital Research Archive (American University)
1
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Cardiff University: ORCA (Online Research @ Cardiff)
1
Colecciones digitales - Biblioteca Virtual del Banco de la República
1
DORA Eawag
1
Dialnet - Portada de revistas (Universidad de La Rioja)
1
Frontiers (Publisher)
1
German Aerospace Center: elib - DLR electronic library
1
IEDA: US Antarctic Program Data Center (via DataONE)
1
Ice and Snow (E-Journal)
1
JSTOR (via Crossref)
1
James Cook University, Australia: ResearchOnline@JCU
1
Kyoto University Research Information Repository (KURENAI)
1
LIU - Linköping University: Publications (DiVA)
1
LSU Digital Commons (Louisiana State University)
1
MACAU: Open Access Repository of Kiel University
1
Macquarie University Research Portal
1
Max Planck Society: MPG.PuRe
1
more ...