Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
5,377
Zenodo
1,481
Digital.CSIC (Spanish National Research Council)
14
Instituto Español de Oceanografía: e-IEO
8
PubMed Central (PMC)
6
Dryad Digital Repository (Duke University)
5
Repositório da Universidade dos Açores
5
University of Nebraska-Lincoln: DigitalCommons@UNL
5
Unknown
5
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
Magnolia press
4
The University of Queensland: UQ eSpace
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
Directory of Open Access Journals: DOAJ Articles
3
University of St Andrews: Digital Research Repository
3
DRO - Deakin Research Online
2
Ghent University Academic Bibliography
2
I-Revues (E-Journals, INIST-CNRS)
2
Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences)
2
Nova Southeastern University: NSU Works
2
University of California: eScholarship
2
BioMed Central
1
CETYS Universidad: Repositorio Institucional
1
City University of New York: CUNY Academic Works
1
Digital Commons University of South Florida (USF)
1
DigitalCommons@CalPoly (California Polytechnic State University, San Luis Obispo)
1
Florida State University Digital Library (FSUDL)
1
Florida State University: DigiNole Commons
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
JagWorks@USA (University of South Alabama Institutional Repository)
1
Leiden University Scholarly Publications
1
Macquarie University Research Portal
1
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University)
1
Repositório Institucional da Universidade de Aveiro (RIA)
1
SEANOE (Sea scientific open data publication)
1
Smith College: Smith ScholarWorks
1
Technical University of Denmark: DTU Orbit
1
Universidad de Las Palmas de Gran Canaria: Acceda
1
Universidade da Madeira: DigitUMa
1
Universidade do Algarve: Sapienta
1
University College London: UCL Discovery
1
University of Auckland Research Repository - ResearchSpace
1
University of South Florida St. Petersburg: Digital USFSP
1
University of Southern Denmark Research Portal
1
University of Southern Maine: Digital Commons@USM
1
University of St Andrews: Research Portal
1
University of Windsor, Ontario: Scholarship at UWindsor
1
Università degli Studi di Genova: CINECA IRIS
1
Université de Nantes: HAL-UNIV-NANTES
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1