Content Provider
DataCite
20
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences)
20
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
14
Imperial College London: Spiral
10
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
8
DIAL@USL-B (Université Saint-Louis, Bruxelles)
2
DataCite Metadata Store (German National Library of Science and Technology)
2
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
2
The University of Waikato: Research Commons
2
University College London: UCL Discovery
2
University of Colorado, Boulder: CU Scholar
2
Defense Technical Information Center: DTIC Technical Reports database
1
Edinburgh Research Archive (ERA - University of Edinburgh)
1
Loughborough University: Figshare
1
Portland State University: PDXScholar
1