Content Provider
Directory of Open Access Journals: DOAJ Articles
4,901
Wiley Online Library
2,955
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2,415
Institut national des sciences de l'Univers: HAL-INSU
1,794
Unknown
1,760
DataCite Metadata Store (German National Library of Science and Technology)
1,619
Université de Nantes: HAL-UNIV-NANTES
1,523
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1,475
Digital.CSIC (Spanish National Research Council)
1,349
Springer Nature (via Crossref)
1,321
Niedersächsisches Online-Archiv NOA
1,303
ScienceDirect (Elsevier - via Crossref)
1,297
LeibnizOpen (The Leibniz Association)
1,291
Natural Environment Research Council: NERC Open Research Archive
1,045
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1,032
University of Southampton: e-Prints Soton
1,007
ScienceDirect (Elsevier)
891
Cambridge University Press
812
DataCite
751
HAL Sorbonne Université
739
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
701
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
675
Max Planck Society: MPG.PuRe
644
University of California: eScholarship
602
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
596
Instituto Español de Oceanografía: e-IEO
553
CentAUR: Central Archive at the University of Reading
541
University of St Andrews: Research Portal
541
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
517
Zenodo
464
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
453
Université de Bretagne Occidentale: HAL
423
RePEc (Research Papers in Economics)
399
École Polytechnique, Université Paris-Saclay: HAL
397
Archives ouvertes de Paris-Saclay
375
Oxford University Press
368
Frontiers (Publisher)
345
University of East Anglia: UEA Digital Repository
342
Muséum National d'Histoire Naturelle (MNHM): HAL
332
ORA - Oxford University Research Archive
326
Université de Paris: Portail HAL
320
University of Copenhagen: Research
317
SAGE Publications
309
University College London: UCL Discovery
303
Aarhus University: Research
297
University of Bergen: Bergen Open Research Archive (BORA-UiB)
290
AAAS Resource Center (American Association for the Advancement of Science)
279
University of the Highlands and Islands: Research Database of UHI
275
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
272
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
265
more ...