Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
573
DataCite Metadata Store (German National Library of Science and Technology)
327
Directory of Open Access Journals: DOAJ Articles
227
Defense Technical Information Center: DTIC Technical Reports database
127
Unknown
121
LeibnizOpen (The Leibniz Association)
74
MDPI Open Access Publishing
47
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
46
Zenodo
33
Université de Nantes: HAL-UNIV-NANTES
32
Frontiers: Figshare
25
University of Tromsø: Septentrio Academic Publishing
24
Digital.CSIC (Spanish National Research Council)
21
Hirsla - Landspítali University Hospital research archive
21
Institut national des sciences de l'Univers: HAL-INSU
20
Aarhus University: Research
19
University of Groningen research database
19
University of St Andrews: Research Portal
17
HAL Sorbonne Université
16
University of California: eScholarship
13
Wageningen UR (University & Research Centre): Digital Library
13
Research Data Australia (Australian National Data Service - ANDS)
12
University College London: UCL Discovery
12
oURspace - The University of Regina's Institutional Repository
12
Dryad Digital Repository (Duke University)
11
Jultika - University of Oulu repository
11
The Royal Society: Figshare
11
University of Copenhagen: Research
11
CyberLeninka (Scientific Electronic Library)
10
GEO-LEOe-docs (FID GEO)
10
University of Tasmania: UTas ePrints
10
Ghent University Academic Bibliography
9
Muséum National d'Histoire Naturelle (MNHM): HAL
9
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
9
Utrecht University Repository
9
DRO - Deakin Research Online
8
The World Bank: Open Knowledge Repository (OKR)
8
Université Toulouse III - Paul Sabatier: HAL-UPS
8
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources)
7
JPL Technical Report Server
7
KovsieScholar Repository (University of the Free State - UFS UV)
7
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
7
Technical University of Denmark: DTU Orbit
7
The University of Adelaide: Digital Library
7
University of Liège: ORBi (Open Repository and Bibliography)
7
University of Tromsø: Munin Open Research Archive
7
Apollo - University of Cambridge Repository
6
BioMed Central
6
Charles University CU Digital repository
6
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)
6
more ...