The Ratio Between the Number of Sunspot and the Number of Sunspot Groups
Crossref DOI link: https://doi.org/10.1134/S001679321707009X
Published Online: 2018-02-24
Published Print: 2017-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Georgieva, K.
Kilçik, A.
Nagovitsyn, Yu.
Kirov, B.
Text and Data Mining valid from 2017-12-01
Article History
Received: 9 March 2017
Accepted: 27 March 2017
First Online: 24 February 2018