TY JOUR TI Auroras during extreme geomagnetic storms: Some features of mid-latitude aurora on February 11, 1958 KW mid-latitude aurora KW magnetic storms KW February KW 11 1958 great aurora JO Solnechno-Zemnaya Fizika AU Mikhalev, A.V. PY 2024 IS 10 PB INFRA-M Academic Publishing LLC.