Content Provider
Defense Technical Information Center: DTIC Technical Reports database
112
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
8
University of St Andrews: Research Portal
8
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
7
The World Bank: Open Knowledge Repository (OKR)
6
Peking University Institutional Repository (PKU IR)
4
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
3
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
2
Ghent University Academic Bibliography
2
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
2
Irstea Publications et Bases documentaires (Irstea@doc/CemOA)
2
Université de Genève: Archive ouverte UNIGE
2
DRO - Deakin Research Online
1
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
1
Lund University Publications (LUP)
1
Queen's University Belfast Research Portal
1
Research Data Australia (Australian National Data Service - ANDS)
1
University of Central Florida (UCF): STARS (Showcase of Text, Archives, Research & Scholarship)
1
University of Copenhagen: Research
1