%0 Journal Article %A A. V. Baev %T Uniqueness of a~solution of an inverse problem for an equation in acoustics, and an inverse spectral problem %J Matematičeskie zametki %D 1990 %P 149-151 %V 47 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1990_47_2_a18/ %G ru %F MZM_1990_47_2_a18