Content Provider
Directory of Open Access Journals: DOAJ Articles
318
DataCite Metadata Store (German National Library of Science and Technology)
306
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
239
University of California: eScholarship
219
Université de Nantes: HAL-UNIV-NANTES
190
Caltech Authors (California Institute of Technology)
178
Institut national des sciences de l'Univers: HAL-INSU
167
ScienceDirect (Elsevier - via Crossref)
133
Cambridge University Press
119
DSpace@MIT (Massachusetts Institute of Technology)
104
Unknown
97
Max Planck Society: MPG.PuRe
90
Cardiff University: ORCA (Online Research @ Cardiff)
89
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
89
Springer Nature (via Crossref)
89
ORA - Oxford University Research Archive
87
University College London: UCL Discovery
87
Niedersächsisches Online-Archiv NOA
78
KITopen (Karlsruhe Institute of Technologie)
76
HAL Sorbonne Université
75
Natural Environment Research Council: NERC Open Research Archive
67
Université de Paris: Portail HAL
64
Archive de l'Observatoire de Paris (HAL)
63
DESY Publication Database (PUBDB)
58
Cambridge University Press (via Crossref)
57
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
54
AAAS Resource Center (American Association for the Advancement of Science)
48
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
48
ScienceDirect (Elsevier)
48
Archives ouvertes de Paris-Saclay
46
Ghent University Academic Bibliography
46
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
46
Université Grenoble Alpes: HAL
43
Wiley Online Library (via Crossref)
43
IOP Publishing (via Crossref)
41
The University of Melbourne: Digital Repository
39
LeibnizOpen (The Leibniz Association)
37
The University of Adelaide: Digital Library
35
The University of Arizona: UA Campus Repository
34
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)
31
Oxford University Press (via Crossref)
28
Sapienza Università di Roma: CINECA IRIS
28
Université de Genève: Archive ouverte UNIGE
28
AIP Publishing
27
Oxford University Press
27
Padua Research Archive (IRIS - Università degli Studi di Padova)
27
Royal Holloway University of London: Royal Holloway Digital Repository
27
The University of Manchester: Research Explorer
27
Université Savoie Mont Blanc: HAL
27
Curtin University: espace
25
more ...