Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
221
Hathi Trust Digital Library
78
Defense Technical Information Center: DTIC Technical Reports database
58
University of Michigan: Digital Collections
27
Zenodo
25
Arctic Council Repository
22
DataCite Metadata Store (German National Library of Science and Technology)
22
Unknown
18
UNESDOC - UNESCO Digital Library
15
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
14
Directory of Open Access Journals: DOAJ Articles
11
University of Tromsø: Munin Open Research Archive
7
Washington State University: WSU Libraries Digital Collections
7
University of Lethbridge Digitized Collections
6
Aarhus University: Research
5
Theseus.fi (Open Repository of the Universities of Applied Sciences)
4
Umeå University: Publications (DiVA)
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
Arctic Data Center (via DataONE)
3
Aurora Health Care Digital Repository
3
Charles University CU Digital repository
3
MDPI Open Access Publishing
3
OLAC: Open Language Archives Community
3
Peking University Institutional Repository (PKU IR)
3
The World Bank: Open Knowledge Repository (OKR)
3
UTSA Digital Collections (The University of Texas at San Antonio)
3
University of Lapland: Lauda
3
University of the Pacific, McGeorge School of Law: Scholarly Commons
3
University of the Pacific: Scholarly Commons
3
Australian National University: ANU Digital Collections
2
Biodiversity Heritage Library (BHL)
2
City University of New York: CUNY Academic Works
2
Doria (National Library of Finland)
2
Harvard University: Harvard Collections
2
Ohio State University (OSU): Knowledge Bank
2
Quebec College Network: ÉDUQ
2
Skemman (Iceland)
2
Texas Tech University: TTU DSpace Repository
2
The Library of Congress: American Memory
2
The University of Arizona: UA Campus Repository
2
The University of Utah: J. Willard Marriott Digital Library
2
UQAM - Université du Québec à Montréal: archipel
2
University of California: eScholarship
2
University of Colorado Boulder, Law School: Scholarly Commons
2
University of Groningen research database
2
University of Iceland: Peer Reviewed Journals
2
University of Tasmania: UTas ePrints
2
University of Washington, Seattle: Digital Collections
2
Université Grenoble Alpes: HAL
2
AU Digital Research Archive (American University)
1
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