Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
478
DataCite Metadata Store (German National Library of Science and Technology)
179
Directory of Open Access Journals: DOAJ Articles
119
Unknown
102
Copernicus Publications: E-Journals
94
Niedersächsisches Online-Archiv NOA
61
Natural Environment Research Council: NERC Open Research Archive
54
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
52
eCite UTAS (University of Tasmania)
51
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
34
Cambridge University Press
32
Institut national des sciences de l'Univers: HAL-INSU
31
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
27
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
24
LeibnizOpen (The Leibniz Association)
21
Springer Nature (via Crossref)
21
University of Liège: ORBi (Open Repository and Bibliography)
20
DIAL@USL-B (Université Saint-Louis, Bruxelles)
19
DIAL@UCLouvain (Université catholique de Louvain)
18
Defense Technical Information Center: DTIC Technical Reports database
18
University of Tasmania: UTas ePrints
18
Université de Nantes: HAL-UNIV-NANTES
18
HAL Sorbonne Université
16
University of Groningen research database
15
ScienceDirect (Elsevier - via Crossref)
14
Archives ouvertes de Paris-Saclay
13
Digital.CSIC (Spanish National Research Council)
13
JPL Technical Report Server
13
PubMed Central (PMC)
13
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
13
University of East Anglia: UEA Digital Repository
12
University of St Andrews: Research Portal
11
Wiley Online Library
11
Wiley Online Library (via Crossref)
11
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
10
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
10
MDPI Open Access Publishing
10
Muséum National d'Histoire Naturelle (MNHM): HAL
10
National Institute of Polar Research Repository, Japan
10
University of Southampton: e-Prints Soton
10
Arctic Portal Library
9
Max Planck Society: MPG.PuRe
9
ScienceDirect (Elsevier)
9
Université de Paris: Portail HAL
9
Wageningen UR (University & Research Centre): Digital Library
9
École Polytechnique, Université Paris-Saclay: HAL
9
HAL de l'Institut Polytechnique de Paris
8
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
7
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
7
Apollo - University of Cambridge Repository
6
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