%0 Journal Article %A E. F. Vershinin %A Yu. N. Gorshkov %A E. A. Ponomarev %A V. Yu. Trakhtengerts %A V. I. Shapaev %T Soft-energetic electrons in the ionosphere as a new source of electromagnetic waves in the very low frequency range %J Doklady Akademii Nauk %D 1973 %P 563-566 %V 210 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_210_3_a15/ %G ru %F DAN_1973_210_3_a15