%0 Journal Article %A A. B. Shvartsburg %T Reflection of strong radiowave from the ionosphere %J Doklady Akademii Nauk %D 1974 %P 825-828 %V 215 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_215_4_a15/ %G ru %F DAN_1974_215_4_a15