Content Provider
USGS Science Data Catalog (via DataONE)
545
PANGAEA - Data Publisher for Earth & Environmental Science
346
LeibnizOpen (The Leibniz Association)
238
DataCite Metadata Store (German National Library of Science and Technology)
150
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
136
Unknown
96
NOAA NCEI Environmental Data Archive (via DataONE)
76
University of North Texas: UNT Digital Library
54
UNESDOC - UNESCO Digital Library
52
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
50
Digital.CSIC (Spanish National Research Council)
47
Biodiversity Heritage Library (BHL)
46
Zenodo
40
Directory of Open Access Journals: DOAJ Articles
35
Université de Nantes: HAL-UNIV-NANTES
31
Institut national des sciences de l'Univers: HAL-INSU
28
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
27
University of California: eScholarship
27
Australian National University: ANU Digital Collections
25
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
23
DataCite
22
Dipòsit Digital de la Universitat de Barcelona
19
Carolina Digital Repository (UNC - University of North Carolina)
18
Frontiers: Figshare
17
Magnolia press
14
MDPI Open Access Publishing
12
Universidad de Las Palmas de Gran Canaria: Acceda
12
Université de Bretagne Occidentale: HAL
12
HAL Sorbonne Université
11
Instituto Español de Oceanografía: e-IEO
11
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University)
11
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
11
University of St Andrews: Research Portal
11
Old Dominion University: ODU Digital Commons
10
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
10
Dalhousie University: DalSpace Institutional Repository
9
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
9
Repositório do INPA
9
TU Delft: Institutional Repository (Delft University of Technology)
9
Université de Paris: Portail HAL
9
ESS-DIVE: Deep Insight for Earth Science Data (via DataONE)
8
Muséum National d'Histoire Naturelle (MNHM): HAL
8
University of Groningen research database
8
Repositorio Digital Institucional - Universidad de Buenos Aires (RDI UBA)
7
The University of Southern Mississippi: The Aquila Digital Community
7
Defense Technical Information Center: DTIC Technical Reports database
6
University of Liège: ORBi (Open Repository and Bibliography)
6
Université de Montpellier: HAL
6
École Polytechnique, Université Paris-Saclay: HAL
6
Aix-Marseille Université: HAL
5
more ...