TY JOUR TI Diagnostics of auroral oval boundaries on the basis of the magnetogram inversion technique KW ionospheric convection KW equivalent current function KW auroral oval KW polar cap KW field-aligned currents KW convection reversal boundary JO Solnechno-Zemnaya Fizika AU Lunyushkin, S.B. AU Penskikh, Y.V. PY 2019 IS 5 PB INFRA-M Academic Publishing LLC.