Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
212
Directory of Open Access Journals: DOAJ Articles
73
Unknown
60
Frontiers: Figshare
37
ScienceDirect (Elsevier - via Crossref)
29
KovsieScholar Repository (University of the Free State - UFS UV)
22
eCite UTAS (University of Tasmania)
21
ASM Journals (American Society for Microbiology)
19
Frontiers (Publisher)
16
ASM Journals (American Society for Microbiology - via Crossref)
15
PubMed Central (PMC)
10
Springer Nature (via Crossref)
9
Wiley Online Library
9
Oxford University Press
8
Wiley Online Library (via Crossref)
4
University of California: eScholarship
3
University of Rhode Island: DigitalCommons@URI
3
Aberdeen University Research Archive (AURA)
2
Canadian Science Publishing (via Crossref)
2
Ghent University Academic Bibliography
2
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR
2
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
2
Uppsala University: Publications (DiVA)
2
DRO - Deakin Research Online
1
Dalhousie University: DalSpace Institutional Repository
1
Fordham University: DigitalResearch@Fordham
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
Karger
1
National University of Ireland (NUI), Galway: ARAN
1
Nature Precedings
1
Oxford University Press (via Crossref)
1
SAGE Publications
1
Southern Cross University: epublications@SCU
1
The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive)
1
University of Malta: OAR@UM
1
University of Stirling: Stirling Digital Research Repository
1
University of Strathclyde Glasgow: Strathprints
1