Content Provider
Directory of Open Access Journals: DOAJ Articles
10,821
Springer Nature (via Crossref)
6,599
Natural Environment Research Council: NERC Open Research Archive
6,384
Cambridge University Press
5,899
ScienceDirect (Elsevier - via Crossref)
5,119
Wiley Online Library
4,795
DataCite Metadata Store (German National Library of Science and Technology)
4,713
Unknown
4,043
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3,621
ScienceDirect (Elsevier)
2,951
Université de Nantes: HAL-UNIV-NANTES
2,543
Informa
2,463
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
2,422
Institut national des sciences de l'Univers: HAL-INSU
2,379
eCite UTAS (University of Tasmania)
2,199
Informa (via Crossref)
1,893
Niedersächsisches Online-Archiv NOA
1,876
LeibnizOpen (The Leibniz Association)
1,719
DataCite
1,688
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1,443
University of California: eScholarship
1,268
University of Tasmania: UTas ePrints
1,176
Digital.CSIC (Spanish National Research Council)
1,107
HAL Sorbonne Université
1,001
Zenodo
946
Oxford University Press
915
Australian National University: ANU Digital Collections
839
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
838
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
825
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
790
University of Southampton: e-Prints Soton
781
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
743
Frontiers (Publisher)
704
University of St Andrews: Research Portal
682
Université Grenoble Alpes: HAL
677
AAAS Resource Center (American Association for the Advancement of Science)
640
Caltech Authors (California Institute of Technology)
584
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
583
Archives ouvertes de Paris-Saclay
562
Biodiversity Heritage Library (BHL)
524
JSTOR (via Crossref)
524
University of Bristol: Bristol Research
517
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
514
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
505
Magnolia press
498
The University of Queensland: UQ eSpace
482
Wiley Online Library (via Crossref)
473
Institut National de la Recherche Agronomique: ProdINRA
471
Oxford University Press (via Crossref)
468
The Royal Society
463
more ...