Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
4,629
Unknown
2,511
University of Alberta: Era - Education and Research Archive
1,744
University of Michigan: Digital Collections
1,027
University of Calgary Journal Hosting
649
Directory of Open Access Journals: DOAJ Articles
467
Zenodo
296
Theses Canada/Thèses Canada (Library and Archives Canada)
234
PubMed Central (PMC)
191
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
175
Arctic Data Center (via DataONE)
171
ScienceDirect (Elsevier - via Crossref)
123
Érudit.org (Université Montréal)
121
PANGAEA - Data Publisher for Earth & Environmental Science
113
USGS Science Data Catalog (via DataONE)
112
Canadian Science Publishing (via Crossref)
108
Springer Nature (via Crossref)
107
Arctic Institute of North America (via Crossref)
92
Informa (via Crossref)
92
McGill University: eScholarship@McGill
88
Wiley Online Library (via Crossref)
85
University of Toronto: Research Repository T-Space
82
Université de Montréal (UdeM): Calypso - Collections d'objets numériques
81
Université de Nantes: HAL-UNIV-NANTES
76
Copernicus Publications: E-Journals
72
Queen's University, Ontario: QSpace
72
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
72
uO Research (University of Ottawa - uOttawa)
72
MSpace at the University of Manitoba
71
Wiley Online Library
70
RePEc (Research Papers in Economics)
63
Dryad Digital Repository (Duke University)
58
CURVE - Carleton University Research Virtual Environment
57
LeibnizOpen (The Leibniz Association)
57
Borealis
56
Cambridge University Press
56
Carleton University's Institutional Repository
52
Niedersächsisches Online-Archiv NOA
52
Biodiversity Heritage Library (BHL)
51
APS Digital Library (American Philosophical Society)
50
Canadian Science Publishing
50
Dalhousie University: DalSpace Institutional Repository
50
MDPI Open Access Publishing
47
PRISM - University of Calgary Digital Repository
47
UQAM - Université du Québec à Montréal: archipel
47
University of British Columbia: cIRcle - UBC's Information Repository
42
University of Windsor, Ontario: Scholarship at UWindsor
42
York University Digital Library
42
Université Laval: CorpusUL
41
OpenEdition
38
more ...