Content Provider
Directory of Open Access Journals: DOAJ Articles
311
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
237
Université de Nantes: HAL-UNIV-NANTES
186
Caltech Authors (California Institute of Technology)
147
Institut national des sciences de l'Univers: HAL-INSU
145
ScienceDirect (Elsevier - via Crossref)
132
Cambridge University Press
115
DSpace@MIT (Massachusetts Institute of Technology)
90
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
86
Springer Nature (via Crossref)
79
Niedersächsisches Online-Archiv NOA
78
KITopen (Karlsruhe Institute of Technologie)
74
Unknown
74
DataCite Metadata Store (German National Library of Science and Technology)
68
DESY Publication Database (PUBDB)
58
Cambridge University Press (via Crossref)
57
ORA - Oxford University Research Archive
56
Max Planck Society: MPG.PuRe
55
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
54
University of California: eScholarship
53
ScienceDirect (Elsevier)
48
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
46
Cardiff University: ORCA (Online Research @ Cardiff)
44
University College London: UCL Discovery
44
Ghent University Academic Bibliography
43
The University of Melbourne: Digital Repository
39
Wiley Online Library (via Crossref)
38
HAL Sorbonne Université
37
LeibnizOpen (The Leibniz Association)
37
The University of Adelaide: Digital Library
34
The University of Arizona: UA Campus Repository
34
Natural Environment Research Council: NERC Open Research Archive
31
Université de Genève: Archive ouverte UNIGE
28
Royal Holloway University of London: Royal Holloway Digital Repository
27
AIP Publishing
26
Harvard University: DASH - Digital Access to Scholarship at Harvard
25
The University of Manchester: Research Explorer
25
University of North Texas: UNT Digital Library
25
Université de Paris: Portail HAL
25
OA@INAF (Istituto Nazionale di Astrofisica)
24
University of Sussex: Sussex Research Online
22
Archive de l'Observatoire de Paris (HAL)
20
Sapienza Università di Roma: CINECA IRIS
20
The Royal Society (via Crossref)
20
Digital.CSIC (Spanish National Research Council)
19
Oxford University Press (via Crossref)
19
Wiley Online Library
19
Archives ouvertes de Paris-Saclay
18
BORIS (Bern Open Repository and Information System, University of Bern)
17
Imperial College London: Spiral
17
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