Content Provider
Springer Nature (via Crossref)
617
DataCite Metadata Store (German National Library of Science and Technology)
573
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
474
AIP Publishing
462
Institut national des sciences de l'Univers: HAL-INSU
386
ScienceDirect (Elsevier - via Crossref)
384
CERN Document Server (CDS)
331
Université de Nantes: HAL-UNIV-NANTES
320
ScienceDirect (Elsevier)
304
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
298
ArXiv.org (Cornell University Library)
294
Cambridge University Press (via Crossref)
261
Directory of Open Access Journals: DOAJ Articles
244
Unknown
232
Caltech Authors (California Institute of Technology)
207
David Rumsey Historical Map Collection (Cartography Associates)
199
HAL Sorbonne Université
145
Cardiff University: ORCA (Online Research @ Cardiff)
139
Université de Paris: Portail HAL
131
University of Potsdam: publish.UP
130
University of California: eScholarship
123
University of Leicester: Leicester Research Archive (LRA)
121
Oxford University Press
108
Archive de l'Observatoire de Paris (HAL)
107
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
96
Ghent University Academic Bibliography
79
University of Leicester: Figshare
76
Oxford University Press (via Crossref)
73
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)
69
Canadian Science Publishing (via Crossref)
67
Université Grenoble Alpes: HAL
67
Archives ouvertes de Paris-Saclay
66
Météo-France: HAL
64
University of Liège: ORBi (Open Repository and Bibliography)
64
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
64
Aix-Marseille Université: HAL
62
HAL Université Côte d'Azur
58
Uppsala University: Publications (DiVA)
58
Université Toulouse III - Paul Sabatier: HAL-UPS
56
SPIE Publications
55
University of Hertfordshire: UH Research Archive
54
The University of Queensland: UQ eSpace
46
University of Vienna: Phaidra
46
Defense Technical Information Center: DTIC Technical Reports database
45
DESY Publication Database (PUBDB)
42
University College London: UCL Discovery
42
BORIS (Bern Open Repository and Information System, University of Bern)
41
LeibnizOpen (The Leibniz Association)
41
NASA Technical Reports Server (NTRS)
41
Wiley Online Library (via Crossref)
41
more ...