Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
19
Unknown
8
Wiley Online Library (via Crossref)
5
Norwegian Institute for Nature Research: Brage NINA
4
Frontiers: Figshare
3
PubMed Central (PMC)
3
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
2
Directory of Open Access Journals: DOAJ Articles
2
Theses Canada/Thèses Canada (Library and Archives Canada)
2
University of British Columbia: cIRcle - UBC's Information Repository
2
VIURRSpace (Royal Roads University and Vancouver Island University)
2
Canadian Science Publishing
1
Digital.CSIC (Spanish National Research Council)
1
Dryad Digital Repository (Duke University)
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
Food systems (E-Journal)
1
Frontiers (Publisher)
1
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
1
Institute for Marine Research: Brage IMR
1
JYX - Jyväskylä University Digital Archive
1
NIOZ Repository (Royal Netherlands Institute for Sea Research)
1
National University of Ireland (NUI), Galway: ARAN
1
Royal Roads University: DSpace @ RRU
1
Swedish University of Agricultural Sciences: Epsilon Archive for Student Projects
1
USGS Science Data Catalog (via DataONE)
1
University of Alberta: Era - Education and Research Archive
1
University of Auckland Research Repository - ResearchSpace
1
University of Nebraska-Lincoln: DigitalCommons@UNL
1
University of Victoria (Canada): UVicDSpace
1
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
1
Vancouver Island University: Viuspace
1
Wiley Online Library
1
Zenodo
1