%0 Journal Article %A P. E. Krasnushkin %A E. N. Fedorov %T Resonance capture of radio waves by ionosphere waveguide and an attempt to use it for detesting valleys in electron density profile of lower ionosphere %J Doklady Akademii Nauk %D 1974 %P 792-795 %V 217 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_217_4_a13/ %G ru %F DAN_1974_217_4_a13