Content Provider
Directory of Open Access Journals: DOAJ Articles
65
Five Colleges of Ohio Digital Collections
17
Biodiversity Heritage Library (BHL)
8
University of North Texas: UNT Digital Library
8
DataCite Metadata Store (German National Library of Science and Technology)
6
UNESDOC - UNESCO Digital Library
6
Unknown
6
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
Hathi Trust Digital Library
4
Lund University Publications (LUP)
4
University of Michigan: Digital Collections
4
Université de Nantes: HAL-UNIV-NANTES
4
Institut national des sciences de l'Univers: HAL-INSU
3
Ohio State University (OSU): Knowledge Bank
3
Royal Holloway University of London: Royal Holloway Digital Repository
3
Apollo - University of Cambridge Repository
2
Australian National University: ANU Digital Collections
2
Digital.CSIC (Spanish National Research Council)
2
Eberhard Karls University Tübingen: Publication System
2
MACAU: Open Access Repository of Kiel University
2
MacSphere (McMaster University)
2
OhioLINK: Electronic Theses and Dissertations Center
2
Repositório da Universidade dos Açores
2
The University of Queensland: UQ eSpace
2
Universidad de Huelva: Arias Montano
2
University of Calgary Journal Hosting
2
University of California: eScholarship
2
University of Copenhagen: Research
2
University of Maryland: Digital Repository (DRUM)
2
University of New Hampshire: Scholars Repository
2
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
2
Université de Genève: Archive ouverte UNIGE
2
AJOL - African Journals Online
1
Aarhus University: Research
1
Archives ouvertes de Paris-Saclay
1
Boston College: eScholarship@BC
1
Caltech Authors (California Institute of Technology)
1
Carleton University's Institutional Repository
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
Dipòsit Digital de la Universitat de Barcelona
1
Durham University: Durham Research Online
1
ETH Zürich Research Collection
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
HAL Clermont Auvergne (Université Blaise Pascal Clermont-Ferrand/Université d'Auvergne)
1
HAL Sorbonne Université
1
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)
1
IUScholarWorks Indiana University
1
KovsieScholar Repository (University of the Free State - UFS UV)
1
Macquarie University Research Portal
1
Masaryk University Journals
1
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