TY JOUR TI Analysis of electron density calculations using deterministic-probabilistic model of the ionospheric D-region KW modeling of the ionospheric D-region KW probabilistic statistical modeling KW theory of probability KW ionization rate KW electron density KW VLF–LF propagation JO Solar-Terrestrial Physics AU Bekker, S.Z. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.