Content Provider
Unknown
371
HighWire Press (Stanford University)
367
PubMed Central (PMC)
303
DataCite Metadata Store (German National Library of Science and Technology)
220
MDPI Open Access Publishing
41
University of New Hampshire: Scholars Repository
28
The University of Maine: DigitalCommons@UMaine
19
University of Rhode Island: DigitalCommons@URI
15
University of Massachusetts: ScholarWorks@UMass Amherst
12
BioOne Online Journals
10
CyberLeninka (Scientific Electronic Library)
10
W&M ScholarWorks
7
Copernicus Publications: E-Journals
5
Dalhousie University: DalSpace Institutional Repository
5
OpenAgrar (OA)
5
University of Westminster: WestminsterResearch
5
ArXiv.org (Cornell University Library)
4
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
4
IRD (Institute de recherche pour le développement): Horizon
3
University of Windsor, Ontario: Scholarship at UWindsor
3
Érudit.org (Université Montréal)
3
AMAD - "Archivum Medii Aevi Digitale - Specialized open access repository for research in the middle ages"
2
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
2
Bates College: SCARAB (Scholarly Communication and Research at Bates)
2
Defense Technical Information Center: DTIC Technical Reports database
2
Environmental Protection Agency (EPA): Science Inventory
2
Norwegian Institute for Nature Research: Brage NINA
2
Swedish University of Agricultural Sciences: Epsilon Archive for Student Projects
2
University of Nebraska-Lincoln: DigitalCommons@UNL
2
Dartmouth Digital Commons (Dartmouth College)
1
DigitalCommons@CalPoly (California Polytechnic State University, San Luis Obispo)
1
Florida International University: Digital Commons@FIU
1
Hrčak - Portal of scientific journals of Croatia
1
Portland State University: PDXScholar
1
The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository
1
The Research Repository @ WVU (West Virginia University)
1
The University of Southern Mississippi: The Aquila Digital Community
1
The University of Western Ontario: Scholarship@Western
1
Tufts Digital Library (TDL)
1
University of Florida: Digital Library Center
1
University of Massachusetts Boston: ScholarWorks at UMass
1
University of New England: DUNE (DigitalUNE)
1
University of Puget Sound: Sound Ideas
1
University of South Carolina Libraries: Scholar Commons
1
University of Southampton: e-Prints Soton
1
University of Tromsø: Munin Open Research Archive
1
Università degli studi di Modena e Reggio Emilia: MoReThesis
1
Università di Pisa: ETD (Electronic Theses and Dissertations)
1
Utah State University: DigitalCommons@USU
1
WBI Studies Repository (WellBeing International)
1
more ...