Content Provider
DataverseNO
150
NASA Technical Reports Server (NTRS)
14
oURspace - The University of Regina's Institutional Repository
13
Zenodo
5
North Dakota State University (NDSU): Digital Horizons
4
Opin vísindi (Iceland)
4
BioMed Central
3
HELDA – University of Helsinki Open Repository
3
Lund University Publications Student Papers (LUP-SP)
3
Swedish National Data Service (SND)
3
Universitat Rovira i Virgili: Repositori institucional URV
3
Borealis
2
DataCite Metadata Store (German National Library of Science and Technology)
2
Edinburgh Napier Repository (Napier University Edinburgh)
2
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
2
National Institute for Health and Welfare (THL), Finland: Julkari
2
Nova Southeastern University: NSU Works
2
The Cupola - Scholarship at Gettysburg College
2
The University of Western Ontario: Scholarship@Western
2
The World Bank: Open Knowledge Repository (OKR)
2
neliti (Indonesia's Think Tank Database)
2
APS Digital Library (American Philosophical Society)
1
Angelo State Digital Repository (Angelo State University - ASU)
1
City University of New York: CUNY Academic Works
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Dublin Institute of Technology: ARROW@DIT (Archiving Research Resources on he Web)
1
Ghent University Academic Bibliography
1
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
1
I-Revues (E-Journals, INIST-CNRS)
1
IntechOpen (E-Books)
1
Jagiellonian University Repository
1
Jefferson Digital Commons (Thomas Jefferson University, Philadelphia)
1
Kharkiv National University: eScriptorium
1
PRISM - University of Calgary Digital Repository
1
Pensoft Publishers
1
Repositorio Institucional de la Universidad Michoacana de San Nicolás de Hidalgo (DSpace)
1
Research Data Australia (Australian National Data Service - ANDS)
1
The Portal to Texas History (University of North Texas)
1
The University Archives for the Uniformed Services University (USU) of the Health Sciences
1
The University of Notre Dame, Australia - ResearchOnline@ND
1
Universidad Nacional Costa Rica (UNA): Repositorio Institucional
1
Universidade Estadual Paulista São Paulo: Acervo Digital da UNESP / São Paulo State University
1
University of Alberta: Era - Education and Research Archive
1
University of North Texas: UNT Digital Library
1
University of Tromsø: Munin Open Research Archive
1
Unknown
1
Wellcome Trust, London: Wellcome Images
1
İstanbul Üniversitesi Açık Erişim Sistemi
1