Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
5,733
DataCite Metadata Store (German National Library of Science and Technology)
5,487
Directory of Open Access Journals: DOAJ Articles
2,283
Unknown
1,683
Copernicus Publications: E-Journals
1,070
Defense Technical Information Center: DTIC Technical Reports database
1,010
Niedersächsisches Online-Archiv NOA
721
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
652
Institut national des sciences de l'Univers: HAL-INSU
512
PubMed Central (PMC)
499
Springer Nature (via Crossref)
494
LeibnizOpen (The Leibniz Association)
450
Wiley Online Library
450
University of Tromsø: Munin Open Research Archive
417
Université de Nantes: HAL-UNIV-NANTES
397
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
389
MDPI Open Access Publishing
371
University of Calgary Journal Hosting
339
Zenodo
298
HAL Sorbonne Université
292
Aarhus University: Research
267
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
267
Max Planck Society: MPG.PuRe
228
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
227
ScienceDirect (Elsevier - via Crossref)
207
Natural Environment Research Council: NERC Open Research Archive
201
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
199
University of Bergen: Bergen Open Research Archive (BORA-UiB)
198
Cambridge University Press
176
Technical University of Denmark: DTU Orbit
175
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
172
Archives ouvertes de Paris-Saclay
171
École Polytechnique, Université Paris-Saclay: HAL
165
University College London: UCL Discovery
160
DIAL@USL-B (Université Saint-Louis, Bruxelles)
157
Muséum National d'Histoire Naturelle (MNHM): HAL
152
Université de Paris: Portail HAL
147
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
134
eCite UTAS (University of Tasmania)
132
DIAL@UCLouvain (Université catholique de Louvain)
130
National Institute of Polar Research Repository, Japan
130
CentAUR: Central Archive at the University of Reading
121
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
114
NTNU Open Archive (Norwegian University of Science and Technology)
114
University of Copenhagen: Research
114
ScienceDirect (Elsevier)
108
Arctic Portal Library
105
Université Grenoble Alpes: HAL
103
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
101
University of Southampton: e-Prints Soton
100
more ...