Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
3,750
DataCite Metadata Store (German National Library of Science and Technology)
861
Directory of Open Access Journals: DOAJ Articles
291
Unknown
276
Springer Nature (via Crossref)
191
Copernicus Publications: E-Journals
159
Natural Environment Research Council: NERC Open Research Archive
155
ScienceDirect (Elsevier - via Crossref)
154
Cambridge University Press
149
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
129
Niedersächsisches Online-Archiv NOA
112
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
107
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
99
ScienceDirect (Elsevier)
91
Institut national des sciences de l'Univers: HAL-INSU
83
eCite UTAS (University of Tasmania)
78
Digital.CSIC (Spanish National Research Council)
77
LeibnizOpen (The Leibniz Association)
63
Université de Nantes: HAL-UNIV-NANTES
58
Magnolia press
55
PubMed Central (PMC)
49
University of Groningen research database
49
University of Southampton: e-Prints Soton
49
HAL Sorbonne Université
48
Wiley Online Library (via Crossref)
48
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
41
University of Liège: ORBi (Open Repository and Bibliography)
37
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
36
Wiley Online Library
35
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
34
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
33
Ghent University Academic Bibliography
33
Muséum National d'Histoire Naturelle (MNHM): HAL
33
Université de Paris: Portail HAL
33
National Institute of Polar Research Repository, Japan
31
University of Bergen: Bergen Open Research Archive (BORA-UiB)
31
University of East Anglia: UEA Digital Repository
30
École Polytechnique, Université Paris-Saclay: HAL
30
Archives ouvertes de Paris-Saclay
29
Max Planck Society: MPG.PuRe
29
University of Tasmania: UTas ePrints
29
DIAL@USL-B (Université Saint-Louis, Bruxelles)
27
MDPI Open Access Publishing
27
Defense Technical Information Center: DTIC Technical Reports database
24
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
24
University of St Andrews: Research Portal
24
DIAL@UCLouvain (Université catholique de Louvain)
23
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
22
HAL de l'Institut Polytechnique de Paris
22
University of Copenhagen: Research
22
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