Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
789
LeibnizOpen (The Leibniz Association)
527
Defense Technical Information Center: DTIC Technical Reports database
395
PANGAEA - Data Publisher for Earth & Environmental Science
343
Directory of Open Access Journals: DOAJ Articles
318
Unknown
284
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
279
Université de Nantes: HAL-UNIV-NANTES
195
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
144
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR
135
MDPI Open Access Publishing
115
University of North Texas: UNT Digital Library
111
Aix-Marseille Université: HAL
90
HAL Université Côte d'Azur
88
Zenodo
88
Université d'Avignon et des Pays de Vaucluse: HAL
83
ScienceDirect (Elsevier - via Crossref)
81
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
71
Institut national des sciences de l'Univers: HAL-INSU
57
University of Tromsø: Munin Open Research Archive
42
Frontiers: Figshare
40
University of California: eScholarship
35
University College London: UCL Discovery
33
National Research Council Canada: NRC Publications Archive
30
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
30
Peking University Institutional Repository (PKU IR)
29
Portail HAL-ANR (Agence Nationale de la Recherche)
28
Luleå University of Technology Publications (DiVA)
27
Wageningen UR (University & Research Centre): Digital Library
27
CyberLeninka (Scientific Electronic Library)
26
De Gruyter (via Crossref)
26
HAL Sorbonne Université
25
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
24
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
23
Université Toulouse III - Paul Sabatier: HAL-UPS
22
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
22
Wiley Online Library (via Crossref)
21
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
20
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
19
McGill University: eScholarship@McGill
19
Météo-France: HAL
19
Delft University of Technology: Institutional Repository
18
HELDA – University of Helsinki Open Repository
18
The University of Queensland: UQ eSpace
18
Aalto University Publication Archive (Aaltodoc)
17
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
17
Université Grenoble Alpes: HAL
17
Archives ouvertes de Paris-Saclay
16
Australian National University: ANU Digital Collections
16
KovsieScholar Repository (University of the Free State - UFS UV)
16
more ...