Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,499
Unknown
162
Directory of Open Access Journals: DOAJ Articles
141
University of Calgary Journal Hosting
67
University of Michigan: Digital Collections
52
PubMed Central (PMC)
51
Wiley Online Library
40
Canadian Science Publishing (via Crossref)
34
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
31
ScienceDirect (Elsevier - via Crossref)
29
MDPI Open Access Publishing
27
University of Toronto: Research Repository T-Space
27
Theses Canada/Thèses Canada (Library and Archives Canada)
25
Institut national de la recherche scientifique, Québec: Espace INRS
22
Université Laval: CorpusUL
22
Arctic Data Center (via DataONE)
21
Copernicus Publications: E-Journals
20
Niedersächsisches Online-Archiv NOA
19
Springer Nature (via Crossref)
19
BioOne Online Journals
17
Defense Technical Information Center: DTIC Technical Reports database
17
Frontiers: Figshare
17
RePEc (Research Papers in Economics)
17
University of Lethbridge Digitized Collections
17
Université de Nantes: HAL-UNIV-NANTES
17
Canadian Science Publishing
16
HighWire Press (Stanford University)
13
Memorial University of Newfoundland: Research Repository
13
Érudit.org (Université Montréal)
13
Queen's University, Ontario: QSpace
12
University of Waterloo, Canada: Institutional Repository
12
Arctic Institute of North America
11
Cambridge University Press
11
Cambridge University Press (via Crossref)
11
Informa
11
Dryad Digital Repository (Duke University)
10
Institut national des sciences de l'Univers: HAL-INSU
10
Borealis
9
DataCite
9
Informa (via Crossref)
9
MSpace at the University of Manitoba
9
University of Victoria (Canada): UVicDSpace
9
Carleton University's Institutional Repository
8
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
8
PANGAEA - Data Publisher for Earth & Environmental Science
8
ScienceDirect (Elsevier)
8
Wilfrid Laurier University, Ontario: Scholars Commons@Laurier
8
Queen's University Belfast Research Portal
7
University of British Columbia: cIRcle - UBC's Information Repository
7
University of Guelph: DSpace digital archive
7
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