Content Provider
Unknown
134
DataCite Metadata Store (German National Library of Science and Technology)
113
Directory of Open Access Journals: DOAJ Articles
70
Copernicus Publications: E-Journals
69
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
66
Institut national des sciences de l'Univers: HAL-INSU
56
University of Copenhagen: Research
54
PANGAEA - Data Publisher for Earth & Environmental Science
53
Université de Nantes: HAL-UNIV-NANTES
47
BORIS (Bern Open Repository and Information System, University of Bern)
45
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
Université Grenoble Alpes: HAL
26
Wiley Online Library
26
PubMed Central (PMC)
22
Queen's University Belfast Research Portal
22
LeibnizOpen (The Leibniz Association)
21
Université Savoie Mont Blanc: HAL
21
Lund University Publications (LUP)
20
ScienceDirect (Elsevier - via Crossref)
16
University of Cambridge, Department of Earth Sciences: ESC Publications
16
Apollo - University of Cambridge Repository
15
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
AAAS Resource Center (American Association for the Advancement of Science)
11
Aarhus University: Research
11
HAL Sorbonne Université
11
Vrije Universiteit Amsterdam (VU): Research Portal
11
Archives ouvertes de Paris-Saclay
10
Springer Nature (via Crossref)
10
Digital.CSIC (Spanish National Research Council)
9
University of St Andrews: Research Portal
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
SAGE Publications
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
Max Planck Society: MPG.PuRe
6
University of Bristol: Bristol Research
6
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
6
Université de Paris: Portail HAL
6
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