Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
203
DataCite
108
DataCite Metadata Store (German National Library of Science and Technology)
57
Arctic Data Center (via DataONE)
16
Aarhus University: Research
13
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
13
Unknown
11
Directory of Open Access Journals: DOAJ Articles
10
University of North Texas: UNT Digital Library
9
University of California: eScholarship
7
Wageningen UR (University & Research Centre): Digital Library
7
Georgia Institute of Technology: SMARTech - Scholarly Materials and Research at Georgia Tech
6
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences)
5
Roskilde University Research Portal (RUC)
5
Università degli Studi di Siena: USiena air
5
Zenodo
5
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
4
Defense Technical Information Center: DTIC Technical Reports database
4
Digital.CSIC (Spanish National Research Council)
4
OPARU (OPen Access Repository of Ulm University)
4
USGS Science Data Catalog (via DataONE)
4
University of Copenhagen: Research
4
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
3
HELDA – University of Helsinki Open Repository
3
Institut national des sciences de l'Univers: HAL-INSU
3
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
3
Leuphana University of Lüneburg: Forschungsindex FOX
3
MDPI Open Access Publishing
3
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
3
Theses Canada/Thèses Canada (Library and Archives Canada)
3
University of New Hampshire: Scholars Repository
3
University of Toronto: Research Repository T-Space
3
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
3
York University, Toronto: YorkSpace
3
Arctic Council Repository
2
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
2
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
2
Harvard University: DASH - Digital Access to Scholarship at Harvard
2
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
2
IRIS Università degli Studi di Perugia
2
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
2
OpenAgrar (OA)
2
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University)
2
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
2
PubMed Central (PMC)
2
Research from Toronto Metropolitan University
2
The University of Adelaide: Digital Library
2
The University of Queensland: UQ eSpace
2
The World Bank: Open Knowledge Repository (OKR)
2
University of Alaska: ScholarWorks@UA
2
more ...