Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
13,497
PANGAEA - Data Publisher for Earth & Environmental Science
9,941
Directory of Open Access Journals: DOAJ Articles
6,777
Unknown
6,725
Springer Nature (via Crossref)
3,888
Cambridge University Press
3,680
ScienceDirect (Elsevier - via Crossref)
3,288
Ohio State University (OSU): Knowledge Bank
3,282
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2,949
eCite UTAS (University of Tasmania)
2,572
PubMed Central (PMC)
2,476
National Institute of Polar Research Repository, Japan
2,354
Natural Environment Research Council: NERC Open Research Archive
2,158
Université de Nantes: HAL-UNIV-NANTES
2,087
Institut national des sciences de l'Univers: HAL-INSU
1,986
Copernicus Publications: E-Journals
1,984
Wiley Online Library (via Crossref)
1,456
Wiley Online Library
1,435
LeibnizOpen (The Leibniz Association)
1,427
Niedersächsisches Online-Archiv NOA
1,356
ScienceDirect (Elsevier)
1,144
University of Tasmania: UTas ePrints
1,048
Informa (via Crossref)
969
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
929
MDPI Open Access Publishing
911
HAL Sorbonne Université
854
Defense Technical Information Center: DTIC Technical Reports database
834
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
765
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
705
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
650
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
641
Digital.CSIC (Spanish National Research Council)
631
University of Canterbury, Christchurch: UC Research Repository
610
HighWire Press (Stanford University)
580
Université Grenoble Alpes: HAL
577
University of Liège: ORBi (Open Repository and Bibliography)
561
University of Southampton: e-Prints Soton
532
Archives ouvertes de Paris-Saclay
530
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
523
Zenodo
522
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
467
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
445
Università degli Studi di Genova: CINECA IRIS
438
Oxford University Press (via Crossref)
411
Utrecht University Repository
386
Muséum National d'Histoire Naturelle (MNHM): HAL
385
University of Bristol: Bristol Research
378
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
378
The University of Queensland: UQ eSpace
364
Université de Paris: Portail HAL
360
more ...