%0 Journal Article %A V. E. Kunitsyn %A N. G. Preobrazhenskii %A E. D. Tereshchenko %T Reconstruction of ionospheric heterogeneities using the radio sounding %J Doklady Akademii Nauk %D 1989 %P 575-579 %V 306 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_306_3_a13/ %G ru %F DAN_1989_306_3_a13