22-year cycle in the frequency of aurora occurrence in XIX century: Latitudinal effects
Crossref DOI link: https://doi.org/10.1134/S0016793217020116
Published Online: 2017-04-19
Published Print: 2017-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Ptitsyna, N. G.
Tyasto, M. I.
Khrapov, B. A.
License valid from 2017-03-01