Content Provider
Unknown
134
Directory of Open Access Journals: DOAJ Articles
72
Copernicus Publications: E-Journals
70
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
66
DataCite Metadata Store (German National Library of Science and Technology)
59
Institut national des sciences de l'Univers: HAL-INSU
56
PANGAEA - Data Publisher for Earth & Environmental Science
56
University of Copenhagen: Research
54
BORIS (Bern Open Repository and Information System, University of Bern)
51
DataCite
50
Université de Nantes: HAL-UNIV-NANTES
47
Niedersächsisches Online-Archiv NOA
45
Cambridge University Press
35
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
32
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
32
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
28
Wiley Online Library
27
Université Grenoble Alpes: HAL
26
Queen's University Belfast Research Portal
23
LeibnizOpen (The Leibniz Association)
22
PubMed Central (PMC)
22
Institut National de la Recherche Agronomique: ProdINRA
21
Université Savoie Mont Blanc: HAL
21
Lund University Publications (LUP)
20
University of St Andrews: Research Portal
19
Apollo - University of Cambridge Repository
16
ScienceDirect (Elsevier - via Crossref)
16
University of Cambridge, Department of Earth Sciences: ESC Publications
16
HAL Sorbonne Université
14
Natural Environment Research Council: NERC Open Research Archive
12
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
12
University of Southampton: e-Prints Soton
12
Vrije Universiteit Amsterdam (VU): Research Portal
12
AAAS Resource Center (American Association for the Advancement of Science)
11
Aarhus University: Research
11
Archives ouvertes de Paris-Saclay
11
SAGE Publications
11
Springer Nature (via Crossref)
10
Digital.CSIC (Spanish National Research Council)
9
Utrecht University Repository
9
Aix-Marseille Université: HAL
8
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
8
Journals at the University of Arizona
8
ScienceDirect (Elsevier)
8
Collège de France: HAL
7
Northumbria University, Newcastle: Northumbria Research Link (NRL)
7
University of Bergen: Bergen Open Research Archive (BORA-UiB)
7
Columbia University: Academic Commons
6
EPHE (Ecole pratique des hautes études, Paris): HAL
6
Max Planck Society: MPG.PuRe
6
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