Content Provider
OLAC: Open Language Archives Community
87
Defense Technical Information Center: DTIC Technical Reports database
79
MDPI Open Access Publishing
57
CyberLeninka (Scientific Electronic Library)
54
DataCite
37
DataCite Metadata Store (German National Library of Science and Technology)
30
Unknown
24
Digital Repository of Scientific Institutes (RCIN)
13
University of Nebraska-Lincoln: DigitalCommons@UNL
9
University of Massachusetts: ScholarWorks@UMass Amherst
7
University of Rhode Island: DigitalCommons@URI
7
LSU Digital Commons (Louisiana State University)
6
PubMed Central (PMC)
5
Utah State University: DigitalCommons@USU
5
BioOne Online Journals
3
Michigan Technological University: Digital Commons @ Michigan Tech
3
Brigham Young University (BYU): ScholarsArchive
2
Digital Repository @ Iowa State University
2
Portland State University: PDXScholar
2
The University of Southern Mississippi: The Aquila Digital Community
2
University of South Florida St. Petersburg: Digital USFSP
2
Western Washington University: CEDAR (Contributing to Education through Digital Access to Research)
2
AMAD - "Archivum Medii Aevi Digitale - Specialized open access repository for research in the middle ages"
1
Boise State University: Scholar Works
1
Claremont Colleges Digital Library (CCDL)
1
Digital Collections of Colorado (Colorado State University)
1
Digital Commons @ East Tennessee State University
1
Digital Commons University of South Florida (USF)
1
Eastern Illinois University: The Keep
1
Eastern Washington University: EWU Digital Commons
1
Georgia Southern University: Digital Commons@Georgia Southern
1
Hrčak - Portal of scientific journals of Croatia
1
IRD (Institute de recherche pour le développement): Horizon
1
Illinois Wesleyan University: Digital Commons@IWU
1
Indiana University - Purdue University Fort Wayne: Opus - Research & Creativity at IPFW
1
Missouri University of Science and Technology (Missouri S&T): Scholars' Mine
1
Mountain Scholar (Digital Collections of Colorado and Wyoming)
1
NEIU Digital Commons (Northeastern Illinois University)
1
Nova Southeastern University: NSU Works
1
OhioLINK: Electronic Theses and Dissertations Center
1
Purdue University: e-Pubs
1
Rhode Island College: DigitalCommons@RIC
1
SUNY Geneseo KnightScholar (State University of New York)
1
Saint Mary's University, Halifax: Institutional Repository
1
San José State University: SJSU ScholarWorks
1
Smith College: Smith ScholarWorks
1
The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository
1
The University of Maine: DigitalCommons@UMaine
1
The University of Utah: J. Willard Marriott Digital Library
1
The University of Vermont: ScholarWorks @ UVM
1
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