%0 Journal Article %T A combined analysis of geomagnetic data and cosmic ray secondaries for the September 2017 space weather event studies %A Sidorov, R.. %A Soloviev, A.A. %A Gvishiani, A.. %A Getmanov, V.. %A Mandea, M.. %A Petrukhin, A.. %A Yashin, I.. %A Obraztsov, A.. %K Space weather events, magnetic storms and substorms, muon flux, instruments and techniques, generalized characteristic functions %J Russian Journal of Earth Sciences %D 2019 %N 19 %P 0 %I Geophysical Center of the Russian Academy of Sciences