Content Provider
Copernicus Publications: E-Journals
184
Unknown
176
DataCite Metadata Store (German National Library of Science and Technology)
151
PubMed Central (PMC)
61
The University of Maine: DigitalCommons@UMaine
50
Central Washington University: ScholarWorks
29
MDPI Open Access Publishing
26
HighWire Press (Stanford University)
12
Portland State University: PDXScholar
10
ArXiv.org (Cornell University Library)
7
LSU Digital Commons (Louisiana State University)
7
OhioLINK: Electronic Theses and Dissertations Center
7
Washington University St. Louis: Open Scholarship
7
Montclair State University Digital Commons
6
University of Colorado, Boulder: CU Scholar
6
University of New Hampshire: Scholars Repository
6
Defense Technical Information Center: DTIC Technical Reports database
4
Natural Environment Research Council: NERC Open Research Archive
4
PennState: Electronic Theses and Dissertations (eTD)
4
University of Nebraska-Lincoln: DigitalCommons@UNL
4
University of Rhode Island: DigitalCommons@URI
4
BioOne Online Journals
3
Brigham Young University (BYU): ScholarsArchive
3
Michigan Technological University: Digital Commons @ Michigan Tech
3
Clark University: Clark Digital Commons
2
CyberLeninka (Scientific Electronic Library)
2
Digital Repository of Scientific Institutes (RCIN)
2
Lancaster University: Lancaster Eprints
2
South Dakota State University (SDSU): Open PRAIRIE (Public Research Access Institutional Repository and Information Exchange)
2
The University of Utah: J. Willard Marriott Digital Library
2
Augustana College, Illinois: Augustana Digital Commons
1
Chapman University Digital Commons
1
Dartmouth Digital Commons (Dartmouth College)
1
DigiZeitschriften: The German digital journal archive (Göttingen University Library)
1
Digital Repository @ Iowa State University
1
EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne)
1
Electronic Theses of LMU Munich (Ludwig-Maximilians-Universität)
1
Hathi Trust Digital Library
1
Illinois Mathematics and Science Academy: DigitalCommons@IMSA
1
Mountain Scholar (Digital Collections of Colorado and Wyoming)
1
Murray State University: Digital Commons
1
OHIO Open Library (Ohio University)
1
Purdue University: e-Pubs
1
Roger Williams University: DOCS@RWU
1
University of Alabama Libraries: Acumen
1
University of Memphis Digital Commons
1
University of Montana: ScholarWorks
1
University of Nevada, Las Vegas: Digital Scholarship@UNLV
1
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
1
W&M ScholarWorks
1
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