TY JOUR TI Hysteresis phenomena in the response of geomagnetic activity and cosmic ray parameters to variations in the interplanetary medium during a magnetic storm KW cosmic rays KW geomagnetic threshold KW cosmic ray cutoff rigidities KW supersubstorm KW interplanetary magnetic field KW geomagnetic activity JO Solnechno-Zemnaya Fizika AU Danilova, O.A. AU Ptitsyna, N.G. AU Sdobnov, V.E. PY 2024 IS 10 PB Institute of Solar-Terrestrial Physics SB RAS