Content Provider
Directory of Open Access Journals: DOAJ Articles
105,984
DataCite Metadata Store (German National Library of Science and Technology)
38,128
ScienceDirect (Elsevier - via Crossref)
36,220
Springer Nature (via Crossref)
29,514
Wiley Online Library (via Crossref)
24,005
Cambridge University Press
22,488
Unknown
22,442
Wiley Online Library
19,257
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
18,572
Informa (via Crossref)
15,966
ScienceDirect (Elsevier)
11,807
Université de Nantes: HAL-UNIV-NANTES
11,608
Natural Environment Research Council: NERC Open Research Archive
10,990
Institut national des sciences de l'Univers: HAL-INSU
10,447
LeibnizOpen (The Leibniz Association)
9,686
Niedersächsisches Online-Archiv NOA
9,575
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
8,282
Canadian Science Publishing (via Crossref)
8,026
Oxford University Press (via Crossref)
6,887
University of Copenhagen: Research
6,216
RePEc (Research Papers in Economics)
6,197
University of California: eScholarship
6,006
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
5,458
Zenodo
5,173
Aarhus University: Research
5,162
University of Calgary Journal Hosting
5,143
Digital.CSIC (Spanish National Research Council)
5,006
JSTOR (via Crossref)
4,792
University of Tromsø: Munin Open Research Archive
4,488
Arctic Institute of North America (via Crossref)
4,435
HAL Sorbonne Université
4,343
Informa
4,202
eCite UTAS (University of Tasmania)
3,961
Frontiers (Publisher)
3,907
Biodiversity Heritage Library (BHL)
3,890
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3,868
Oxford University Press
3,840
University of Southampton: e-Prints Soton
3,422
Canadian Science Publishing
3,415
Max Planck Society: MPG.PuRe
3,413
SAGE Publications (via Crossref)
3,150
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
2,871
Hirsla - Landspítali University Hospital research archive
2,833
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2,805
IOP Publishing (via Crossref)
2,753
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
2,734
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
2,634
Technical University of Denmark: DTU Orbit
2,611
University of St Andrews: Research Portal
2,347
Caltech Authors (California Institute of Technology)
2,303
more ...