%0 Journal Article %A I. O. Kitov %A M. B. Gokhberg %T Near surface source acoustic energy determination on the base of vertical sounding of the ionosphere %J Doklady Akademii Nauk %D 1992 %P 982-985 %V 324 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_324_5_a13/ %G ru %F DAN_1992_324_5_a13