Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
412
Zenodo
26
Directory of Open Access Journals: DOAJ Articles
25
LeibnizOpen (The Leibniz Association)
19
Unknown
14
PubMed Central (PMC)
12
WikiBooks - Open-content textbooks
9
Borealis
8
RePEc (Research Papers in Economics)
8
Memorial University of Newfoundland: Research Repository
6
NOAA NCEI Environmental Data Archive (via DataONE)
5
Theses Canada/Thèses Canada (Library and Archives Canada)
4
University of British Columbia: cIRcle - UBC's Information Repository
4
University of Calgary Journal Hosting
4
VIURRSpace (Royal Roads University and Vancouver Island University)
4
MSpace at the University of Manitoba
3
University of Lethbridge Digitized Collections
3
Cambridge University Press
2
Cambridge University Press (via Crossref)
2
Canadian Science Publishing
2
Dryad Digital Repository (Duke University)
2
Institut national de la recherche scientifique, Québec: Espace INRS
2
PRISM - University of Calgary Digital Repository
2
The University of Western Ontario: Scholarship@Western
2
University of Toronto: Research Repository T-Space
2
University of Waterloo, Canada: Institutional Repository
2
Vancouver Island University: Viuspace
2
Arca (BC's Digital Treasures)
1
BioMed Central
1
BioOne Online Journals
1
Bond University Research Portal
1
Bond University: e-publications@bond
1
Brock University Digital Repository
1
COS Center for Open Science (via Crossref)
1
Dalhousie University: DalSpace Institutional Repository
1
Electrical Engineering and Power Engineering (EE&PE - E-Journal)
1
Emerald (via Crossref)
1
Frontiers: Figshare
1
Graz University (UGR): Unipub
1
HRB National Drugs Library (Health Research Board)
1
Hathi Trust Digital Library
1
Hindawi Publishing Corporation
1
MDPI Open Access Publishing
1
National Research Council Canada: NRC Publications Archive
1
Oxford University Press
1
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED)
1
Pensoft Publishers
1
Queen's University, Ontario: OJS@Queen's University
1
Scientific Periodicals of Ukraine (Ukrainian Research and Academic Network)
1
Springer Nature
1
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