Content Provider
Defense Technical Information Center: DTIC Technical Reports database
429
Arctic Data Center (via DataONE)
301
DataCite Metadata Store (German National Library of Science and Technology)
208
Directory of Open Access Journals: DOAJ Articles
105
Unknown
83
Frontiers: Figshare
63
PANGAEA - Data Publisher for Earth & Environmental Science
58
Research Data Australia (Australian National Data Service - ANDS)
58
University of St Andrews: Research Portal
51
Aarhus University: Research
43
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
40
University of St Andrews: Digital Research Repository
30
Dryad Digital Repository (Duke University)
29
Université de Nantes: HAL-UNIV-NANTES
29
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
26
Zenodo
25
Institut national des sciences de l'Univers: HAL-INSU
24
MDPI Open Access Publishing
24
TU Delft: Institutional Repository (Delft University of Technology)
23
LeibnizOpen (The Leibniz Association)
20
The Royal Society: Figshare
18
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
18
Université Grenoble Alpes: HAL
17
University of California: eScholarship
14
Digital.CSIC (Spanish National Research Council)
13
University of Bath's research portal
13
University of Calgary Journal Hosting
13
Université de Bretagne Occidentale: HAL
13
Delft University of Technology: Institutional Repository
12
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
11
Curtin University: espace
11
The University of Queensland: UQ eSpace
11
Wageningen UR (University & Research Centre): Digital Library
11
Université de Paris: Portail HAL
10
HAL Univ-Eiffel (Université Gustave Eiffel)
9
University of Southern Denmark Research Portal
9
Naval Postgraduate School: Calhoun
8
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
8
University of the Highlands and Islands: Research Database of UHI
8
Apollo - University of Cambridge Repository
7
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
7
Université Savoie Mont Blanc: HAL
7
Caltech Authors (California Institute of Technology)
6
ENSTA Bretagne: HAL (Ecole Nationale Supérieure de Techniques Avancées Bretagne)
6
HAL Sorbonne Université
6
University of Copenhagen: Research
6
Duke University Libraries: DukeSpace
5
Indian Institute of Geomagnetism (IIG): Repository
5
Portail HAL-ANR (Agence Nationale de la Recherche)
5
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX)
5
more ...