%0 Journal Article %T Inversion of backscatter ionograms into quasiparabolic ionospheric layer parameters %A Ponomarchuk, S.N. %A Penzin, M.S. %K ionosphere, ionogram, radio wave propagation, backscatter ionospheric sounding %J Solar-Terrestrial Physics %D 2020 %N 6 %P 4 %I INFRA-M Academic Publishing LLC.