Tests of Sunspot Number Sequences: 1. Using Ionosonde Data
Crossref DOI link:
Update policy: https://doi.org/10.1007/SPRINGER_CROSSMARK_POLICY
Scott, C. J.
Owens, M. J.
Willis, D. M.
Funding for this research was provided by:
Science and Technology Facilities Council (ST/M000885/1)
unspecified valid from 2016-02-29