Content Provider
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
258
University of North Texas: UNT Digital Library
140
The Portal to Texas History (University of North Texas)
131
Project Gutenberg (PG)
73
OLAC: Open Language Archives Community
70
Directory of Open Access Journals: DOAJ Articles
29
Digital Commons University of South Florida (USF)
19
University of South Florida St. Petersburg: Digital USFSP
19
Unknown
19
University of Iceland: Peer Reviewed Journals
16
Hathi Trust Digital Library
14
DataCite Metadata Store (German National Library of Science and Technology)
12
Hunter Library Digital Collections (Western Carolina University)
12
oURspace - The University of Regina's Institutional Repository
10
Brigham Young University (BYU): Digital Collections
9
OpenEdition
8
UNESDOC - UNESCO Digital Library
7
Villanova University Falvey Memorial Library: Villanova Digital Library
7
Apollo - University of Cambridge Repository
6
DergiPark Akademik (E-Journals)
6
University of Michigan: Deep Blue
6
University of Tromsø: Septentrio Academic Publishing
6
York University, Toronto: YorkSpace
6
APS Digital Library (American Philosophical Society)
5
Aalborg University's Research Portal
5
CyberLeninka (Scientific Electronic Library)
5
HELDA – University of Helsinki Open Repository
5
Queen's University, Ontario: QSpace
5
Theses Canada/Thèses Canada (Library and Archives Canada)
5
University of Victoria (Canada): UVicDSpace
5
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Digital Collections of Colorado (Colorado State University)
4
Mountain Scholar (Digital Collections of Colorado and Wyoming)
4
NOAA NCEI Environmental Data Archive (via DataONE)
4
The University of Queensland: UQ eSpace
4
University of Colorado Boulder, Law School: Scholarly Commons
4
Arca (BC's Digital Treasures)
3
Croatian Digital Theses Repository (National and University Library in Zagreb)
3
Digital Library of University of Maribor
3
Marmara Üniversitesi: Açık Arşiv Hizmete Girdi
3
Ohio State University (OSU): Knowledge Bank
3
SAIC Digital Collections (School of the Art Institute of Chicago)
3
University of Alaska: ScholarWorks@UA
3
University of Central Florida (UCF): STARS (Showcase of Text, Archives, Research & Scholarship)
3
University of Florida: Digital Library Center
3
University of Michigan: Digital Collections
3
University of Minnesota Digital Conservancy
3
University of Saskatchewan: eCommons@USASK
3
Ural State Forest Engineering University (USFEU): Electronic Archive
3
AMUR - Adam Mickiewicz University Repository, Poznan
2
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