Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
15,406
PANGAEA - Data Publisher for Earth & Environmental Science
7,526
Unknown
5,921
Directory of Open Access Journals: DOAJ Articles
4,386
LeibnizOpen (The Leibniz Association)
2,135
Arctic Data Center (via DataONE)
1,994
Research Data Australia (Australian National Data Service - ANDS)
1,381
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1,328
Zenodo
1,270
University of California: eScholarship
1,245
Frontiers: Figshare
1,226
Université de Nantes: HAL-UNIV-NANTES
941
Defense Technical Information Center: DTIC Technical Reports database
904
MDPI Open Access Publishing
898
Institut national des sciences de l'Univers: HAL-INSU
812
Dryad Digital Repository (Duke University)
787
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
643
Wiley Online Library
595
Open Parks Network
570
PubMed Central (PMC)
536
Aarhus University: Research
514
Technical University of Denmark: DTU Orbit
440
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
437
Knowledge Network for Biocomplexity (via DataONE)
433
NOAA NCEI Environmental Data Archive (via DataONE)
426
Lund University Publications (LUP)
414
Copernicus Publications: E-Journals
407
University of Tromsø: Munin Open Research Archive
388
Digital.CSIC (Spanish National Research Council)
381
University of Cambridge, Department of Earth Sciences: ESC Publications
377
University of Copenhagen: Research
376
David Rumsey Historical Map Collection (Cartography Associates)
370
HELDA – University of Helsinki Open Repository
360
HAL Sorbonne Université
358
University of Calgary Journal Hosting
314
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
312
University College London: UCL Discovery
311
eCite UTAS (University of Tasmania)
305
University of North Texas: UNT Digital Library
295
Wageningen UR (University & Research Centre): Digital Library
293
University of Tasmania: UTas ePrints
279
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
260
Niedersächsisches Online-Archiv NOA
256
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
249
Vrije Universiteit Amsterdam (VU): Research Portal
248
Columbia University: Academic Commons
243
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
242
The University of Maine: DigitalCommons@UMaine
240
Archives ouvertes de Paris-Saclay
235
Springer Nature (via Crossref)
233
more ...