Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,412
Arctic Data Center (via DataONE)
1,183
Unknown
1,169
Directory of Open Access Journals: DOAJ Articles
938
PANGAEA - Data Publisher for Earth & Environmental Science
830
DataCite
761
NASA Technical Reports Server (NTRS)
535
MDPI Open Access Publishing
367
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
205
Zenodo
191
The University of Kansas: KU ScholarWorks
175
Université de Nantes: HAL-UNIV-NANTES
157
LeibnizOpen (The Leibniz Association)
156
Defense Technical Information Center: DTIC Technical Reports database
153
NOAA NCEI Environmental Data Archive (via DataONE)
125
Institut national des sciences de l'Univers: HAL-INSU
120
University of North Texas: UNT Digital Library
99
University of California: eScholarship
89
Research Data Australia (Australian National Data Service - ANDS)
78
USGS Science Data Catalog (via DataONE)
72
Frontiers: Figshare
70
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
52
eCite UTAS (University of Tasmania)
50
HAL Sorbonne Université
49
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
49
Apollo - University of Cambridge Repository
46
JPL Technical Report Server
44
Université d'Avignon et des Pays de Vaucluse: HAL
44
Aix-Marseille Université: HAL
43
University of Calgary Journal Hosting
42
HAL Université Côte d'Azur
41
University of St Andrews: Research Portal
41
Université Grenoble Alpes: HAL
39
Chalmers University of Technology: Chalmers research
36
Norwegian Polar Data Centre
35
University of Colorado, Boulder: CU Scholar
35
University of Tasmania: UTas ePrints
35
University of Tromsø: Munin Open Research Archive
35
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
33
Météo-France: HAL
33
Digital.CSIC (Spanish National Research Council)
31
Michigan Technological University: Digital Commons @ Michigan Tech
31
Université Toulouse III - Paul Sabatier: HAL-UPS
31
PRISM - University of Calgary Digital Repository
29
Queen's University, Ontario: QSpace
29
Technical University of Denmark: DTU Orbit
29
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
29
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
28
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX)
27
University of Liège: ORBi (Open Repository and Bibliography)
27
more ...