Content Provider
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Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
55
Zenodo
50
Karlstad University: Publications (DIVA)
47
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
47
Aberdeen University Research Archive (AURA)
44
JSTOR
43
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
41
Queen's University Belfast Research Portal
40
University of St Andrews: Digital Research Repository
37
University of California Press (via Crossref)
36
Canadian Science Publishing
32
Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences)
29
University of Washington, Seattle: ResearchWorks
29
Dalhousie University: DalSpace Institutional Repository
28
Griffith University: Griffith Research Online
28
Nature Precedings
28
University of Liège: ORBi (Open Repository and Bibliography)
28
University of North Texas: UNT Digital Library
28
PRISM - University of Calgary Digital Repository
27
Stockholm University: Publications (DiVA)
27
Ghent University Academic Bibliography
26
HELDA – University of Helsinki Open Repository
26
DIAL@USL-B (Université Saint-Louis, Bruxelles)
25
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
25
University of St Andrews: Research Portal
25
ASM Journals (American Society for Microbiology)
24
Duke University Libraries: DukeSpace
24
Linnaeus University Kalmar Växjö: Publications (DiVA)
24
Research Data Australia (Australian National Data Service - ANDS)
24
Biodiversity Heritage Library (BHL)
23
ARPI - Archivio della Ricerca dell'Università di Pisa
22
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
22
Columbia University: Academic Commons
22
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR
22
LIU - Linköping University: Publications (DiVA)
22
University of New Hampshire: Scholars Repository
22
Université de Genève: Archive ouverte UNIGE
22
Université de Nantes: HAL-UNIV-NANTES
21
SSOAR - Social Science Open Access Repository
20
Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences)
19
University of California Press
19
Open Access Victoria University of Wellington / Te Herenga Waka
18
Imperial College London: Spiral
17
Montana State University (MSU): ScholarWorks
17
Digital.CSIC (Spanish National Research Council)
16
Technical University of Denmark: DTU Orbit
16
NTNU Open Archive (Norwegian University of Science and Technology)
15
Opin vísindi (Iceland)
15
Schweizerbart Science Publishers (via Crossref)
15
University of Nottingham: Repository@Nottingham
15
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