Content Provider
Frontiers: Figshare
565
Unknown
255
DataCite Metadata Store (German National Library of Science and Technology)
197
Directory of Open Access Journals: DOAJ Articles
120
Defense Technical Information Center: DTIC Technical Reports database
116
USGS Science Data Catalog (via DataONE)
65
Arctic Data Center (via DataONE)
53
LeibnizOpen (The Leibniz Association)
42
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
40
Research Data Australia (Australian National Data Service - ANDS)
32
Université de Nantes: HAL-UNIV-NANTES
29
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
27
MDPI Open Access Publishing
26
KovsieScholar Repository (University of the Free State - UFS UV)
25
Zenodo
23
Hirsla - Landspítali University Hospital research archive
22
University of North Texas: UNT Digital Library
21
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
18
Institut national des sciences de l'Univers: HAL-INSU
18
University of California: eScholarship
18
Université Grenoble Alpes: HAL
18
University of St Andrews: Research Portal
15
Université Savoie Mont Blanc: HAL
15
Digital.CSIC (Spanish National Research Council)
13
CyberLeninka (Scientific Electronic Library)
12
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
12
Opin vísindi (Iceland)
12
Université de Genève: Archive ouverte UNIGE
12
ETH Zürich Research Collection
11
Persée: Portail de revues scientifiques en sciences humaines et sociales
10
NIOZ Repository (Royal Netherlands Institute for Sea Research)
9
University of Calgary Journal Hosting
9
University of St Andrews: Digital Research Repository
8
University of Tromsø: Munin Open Research Archive
8
Uppsala University: Publications (DiVA)
8
Aarhus University: Research
7
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
7
PANGAEA - Data Publisher for Earth & Environmental Science
7
HELDA – University of Helsinki Open Repository
6
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
6
Ice and Snow (E-Journal)
6
Open Access Victoria University of Wellington / Te Herenga Waka
6
ARPI - Archivio della Ricerca dell'Università di Pisa
5
Apollo - University of Cambridge Repository
5
Arctic Council Repository
5
BioMed Central
5
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
5
GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
5
HAL Sorbonne Université
5
Jultika - University of Oulu repository
5
more ...