The sunspot—shallow or deep?
Crossref DOI link: https://doi.org/10.1134/S0016793214070123
Published Online: 2014-11-23
Published Print: 2014-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Solov’ev, A. A.
Kirichek, E. A.
Text and Data Mining valid from 2014-11-23